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https://github.com/dexterbg/Twizy-Virtual-BMS.git
synced 2024-11-18 12:33:57 +00:00
Version: 1.1.0
- Added support for Timer2 & Timer3 (see config header) - Added `setCurrentQA()` API call (native=fast 1/4 A resolution)
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9 changed files with 101 additions and 14 deletions
4
API.md
4
API.md
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@ -48,6 +48,10 @@ Note: all control functions validate their parameters. If you pass any value out
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- `bool setCurrent(float amps)` -- Set momentary battery pack current level
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- `bool setCurrent(float amps)` -- Set momentary battery pack current level
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- amps: -500 .. +500 (A, positive = charge, negative = discharge)
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- amps: -500 .. +500 (A, positive = charge, negative = discharge)
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- `bool setCurrentQA(long quarterAmps)` -- Set momentary battery pack current level
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- quarterAmps: -2000 .. +2000 (1/4 A, positive = charge, negative = discharge)
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- This is the native BMS current resolution, so no float/division necessary
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- `bool setSOC(float soc)` -- Set state of charge
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- `bool setSOC(float soc)` -- Set state of charge
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- soc: 0.00 .. 100.00 (%)
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- soc: 0.00 .. 100.00 (%)
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- Note: the charger will not start charging at SOC=100%
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- Note: the charger will not start charging at SOC=100%
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@ -1,6 +1,12 @@
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# History
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# History
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## Version: 1.1.0 (2017-06-20)
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- Added support for Timer2 & Timer3 (see config header)
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- Added `setCurrentQA()` API call (native=fast 1/4 A resolution)
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## Version: 1.0.0 (2017-06-17)
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## Version: 1.0.0 (2017-06-17)
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- Conversion to Arduino library
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- Conversion to Arduino library
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@ -19,7 +19,10 @@ To download, click the DOWNLOADS button in the top right corner, download the ZI
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You will also need these libraries:
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You will also need these libraries:
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- [MCP_CAN_lib by Cory Fowler](https://github.com/coryjfowler/MCP_CAN_lib)
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- [MCP_CAN_lib by Cory Fowler](https://github.com/coryjfowler/MCP_CAN_lib)
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- …and one of…
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- [TimerOne by Paul Stoffregen](https://github.com/PaulStoffregen/TimerOne)
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- [TimerOne by Paul Stoffregen](https://github.com/PaulStoffregen/TimerOne)
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- [FlexiTimer2 by Paul Stoffregen](https://github.com/PaulStoffregen/FlexiTimer2)
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- [TimerThree by Paul Stoffregen](https://github.com/PaulStoffregen/TimerThree)
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To get the smallest possible ROM & RAM footprint, set `TWIZY_DEBUG_LEVEL` to 0 and `DEBUG_MODE` of the MCP_CAN library to 0. This reduces the core memory usage of the VirtualBMS library to (currently) 8338 bytes ROM and 403 bytes RAM.
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To get the smallest possible ROM & RAM footprint, set `TWIZY_DEBUG_LEVEL` to 0 and `DEBUG_MODE` of the MCP_CAN library to 0. This reduces the core memory usage of the VirtualBMS library to (currently) 8338 bytes ROM and 403 bytes RAM.
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@ -20,13 +20,22 @@
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// You may need to lower this if your Arduino is too slow.
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// You may need to lower this if your Arduino is too slow.
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#define TWIZY_CAN_CLOCK_US 10000
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#define TWIZY_CAN_CLOCK_US 10000
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// VirtualBMS can use Timer1 (16 bit), Timer2 (8 bit) or Timer3 (16bit)
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// Select Timer2/3 if you need Timer1 for e.g. AltSoftSerial
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#define TWIZY_USE_TIMER 1
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// Timer2: precise resolutions depend on CPU type & clock frequency
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// i.e. Arduino Nano 16 MHz: 1000 = 1 ms / 2000 = 0.5 ms / 5000 = 0.2 ms / 10000 = 0.1 ms
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// Use lowest resolution possible to minimize side effects on AltSoftSerial
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#define TWIZY_TIMER2_RESOLUTION 1000
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// Set your MCP clock frequency here:
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// Set your MCP clock frequency here:
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#define TWIZY_CAN_MCP_FREQ MCP_16MHZ
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#define TWIZY_CAN_MCP_FREQ MCP_16MHZ
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// Set your SPI CS pin number here:
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// Set your SPI CS pin number here:
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#define TWIZY_CAN_CS_PIN 10
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#define TWIZY_CAN_CS_PIN 10
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// If you've connected the CAN module's IRQ pin:
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// Uncomment if you've connected the CAN module's IRQ pin:
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//#define TWIZY_CAN_IRQ_PIN 2
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//#define TWIZY_CAN_IRQ_PIN 2
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// Set your 3MW (ECU_OK) control pin here:
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// Set your 3MW (ECU_OK) control pin here:
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@ -20,13 +20,22 @@
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// You may need to lower this if your Arduino is too slow.
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// You may need to lower this if your Arduino is too slow.
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#define TWIZY_CAN_CLOCK_US 10000
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#define TWIZY_CAN_CLOCK_US 10000
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// VirtualBMS can use Timer1 (16 bit), Timer2 (8 bit) or Timer3 (16bit)
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// Select Timer2/3 if you need Timer1 for e.g. AltSoftSerial
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#define TWIZY_USE_TIMER 1
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// Timer2: precise resolutions depend on CPU type & clock frequency
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// i.e. Arduino Nano 16 MHz: 1000 = 1 ms / 2000 = 0.5 ms / 5000 = 0.2 ms / 10000 = 0.1 ms
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// Use lowest resolution possible to minimize side effects on AltSoftSerial
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#define TWIZY_TIMER2_RESOLUTION 1000
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// Set your MCP clock frequency here:
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// Set your MCP clock frequency here:
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#define TWIZY_CAN_MCP_FREQ MCP_16MHZ
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#define TWIZY_CAN_MCP_FREQ MCP_16MHZ
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// Set your SPI CS pin number here:
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// Set your SPI CS pin number here:
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#define TWIZY_CAN_CS_PIN 10
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#define TWIZY_CAN_CS_PIN 10
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// If you've connected the CAN module's IRQ pin:
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// Uncomment if you've connected the CAN module's IRQ pin:
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//#define TWIZY_CAN_IRQ_PIN 2
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//#define TWIZY_CAN_IRQ_PIN 2
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// Set your 3MW (ECU_OK) control pin here:
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// Set your 3MW (ECU_OK) control pin here:
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@ -25,6 +25,7 @@ setSOC KEYWORD2
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setTemperature KEYWORD2
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setTemperature KEYWORD2
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setVoltage KEYWORD2
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setVoltage KEYWORD2
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setCurrent KEYWORD2
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setCurrent KEYWORD2
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setCurrentQA KEYWORD2
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setError KEYWORD2
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setError KEYWORD2
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attachEnterState KEYWORD2
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attachEnterState KEYWORD2
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@ -1,5 +1,5 @@
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name=Twizy Virtual BMS
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name=Twizy Virtual BMS
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version=1.0.0
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version=1.1.0
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author=Michael Balzer
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author=Michael Balzer
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maintainer=Michael Balzer <dexter@dexters-web.de>
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maintainer=Michael Balzer <dexter@dexters-web.de>
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sentence=Emulation of Renault Twizy BMS (battery management system)
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sentence=Emulation of Renault Twizy BMS (battery management system)
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@ -21,7 +21,10 @@
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*
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*
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* Libraries used:
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* Libraries used:
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* - MCP_CAN: https://github.com/coryjfowler/MCP_CAN_lib
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* - MCP_CAN: https://github.com/coryjfowler/MCP_CAN_lib
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* …plus one of…
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* - TimerOne: https://github.com/PaulStoffregen/TimerOne
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* - TimerOne: https://github.com/PaulStoffregen/TimerOne
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* - FlexiTimer2: https://github.com/PaulStoffregen/FlexiTimer2
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* - TimerThree: https://github.com/PaulStoffregen/TimerThree
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*
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*
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* Licenses:
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* Licenses:
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* This is free software and information under the following licenses:
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* This is free software and information under the following licenses:
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@ -35,24 +38,37 @@
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#ifndef _TwizyVirtualBMS_h
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#ifndef _TwizyVirtualBMS_h
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#define _TwizyVirtualBMS_h
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#define _TwizyVirtualBMS_h
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#define TWIZY_VBMS_VERSION "V1.1.0 (2017-06-20)"
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#ifndef TWIZY_TAG
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#define TWIZY_TAG "twizy."
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#endif
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#include <Arduino.h>
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#include <Arduino.h>
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#include <avr/pgmspace.h>
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#include <avr/pgmspace.h>
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#include <mcp_can.h>
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#include <mcp_can.h>
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#include <mcp_can_dfs.h>
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#include <mcp_can_dfs.h>
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#ifndef TWIZY_USE_TIMER
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#define TWIZY_USE_TIMER 1
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#endif
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#if TWIZY_USE_TIMER == 1
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#include <TimerOne.h>
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#include <TimerOne.h>
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#elif TWIZY_USE_TIMER == 2
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#include <FlexiTimer2.h>
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#elif TWIZY_USE_TIMER == 3
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#include <TimerThree.h>
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#else
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#error "TWIZY_USE_TIMER invalid, please set to 1, 2 or 3!"
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#endif
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#ifndef _TwizyVirtualBMS_config_h
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#ifndef _TwizyVirtualBMS_config_h
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#warning "Fallback to default TwizyVirtualBMS_config.h -- you should copy this into your sketch folder"
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#warning "Fallback to default TwizyVirtualBMS_config.h -- you should copy this into your sketch folder"
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#include "TwizyVirtualBMS_config.h"
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#include "TwizyVirtualBMS_config.h"
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#endif
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#endif
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#define TWIZY_VBMS_VERSION "V1.0.0 (2017-06-17)"
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#ifndef TWIZY_TAG
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#define TWIZY_TAG "twizy."
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#endif
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// ==========================================================================
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// ==========================================================================
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// TYPES AND CONSTANTS
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// TYPES AND CONSTANTS
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@ -78,7 +94,7 @@ enum TwizyState {
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// Twizy state names:
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// Twizy state names:
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#if TWIZY_DEBUG_LEVEL >= 1
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#if TWIZY_DEBUG_LEVEL >= 1
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const char PROGMEM twizyStateName[13][13] = {
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const char twizyStateName[13][13] PROGMEM = {
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"Off",
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"Off",
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"Init",
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"Init",
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"Error",
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"Error",
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// Model access:
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// Model access:
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bool setChargeCurrent(int amps);
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bool setChargeCurrent(int amps);
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bool setCurrent(float amps);
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bool setCurrent(float amps);
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bool setCurrentQA(long quarterAmps);
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bool setSOC(float soc);
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bool setSOC(float soc);
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bool setPowerLimits(unsigned int drive, unsigned int recup);
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bool setPowerLimits(unsigned int drive, unsigned int recup);
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bool setSOH(int soh);
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bool setSOH(int soh);
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@ -347,6 +364,16 @@ bool TwizyVirtualBMS::setCurrent(float amps) {
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return true;
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return true;
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}
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}
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// Set battery pack current level (native 1/4 A resolution)
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// milliamps: -2000 .. +2000 (positive = charge, negative = discharge)
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bool TwizyVirtualBMS::setCurrentQA(long quarterAmps) {
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CHECKLIMIT(quarterAmps, -2000L, 2000L);
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unsigned int level = 2000 + quarterAmps;
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id155[1] = (id155[1] & 0xf0) | ((level & 0x0f00) >> 8);
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id155[2] = level & 0x00ff;
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return true;
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}
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// Set battery pack SOC
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// Set battery pack SOC
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// soc: 0.00 .. 100.00
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// soc: 0.00 .. 100.00
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// Note: the charger will not start charging at SOC=100%
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// Note: the charger will not start charging at SOC=100%
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@ -962,9 +989,28 @@ void TwizyVirtualBMS::begin() {
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enterState(Off);
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enterState(Off);
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#if TWIZY_USE_TIMER == 1
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// Use Timer1 (16 bit):
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Timer1.initialize(TWIZY_CAN_CLOCK_US);
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Timer1.initialize(TWIZY_CAN_CLOCK_US);
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Timer1.attachInterrupt(twizyClockISR);
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Timer1.attachInterrupt(twizyClockISR);
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#elif TWIZY_USE_TIMER == 2
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// Use Timer2 (8 bit): derive count from resolution:
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FlexiTimer2::set(TWIZY_CAN_CLOCK_US / (1000000UL / TWIZY_TIMER2_RESOLUTION),
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1.0 / TWIZY_TIMER2_RESOLUTION,
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twizyClockISR);
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FlexiTimer2::start();
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#else
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// Use Timer3 (16 bit):
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Timer3.initialize(TWIZY_CAN_CLOCK_US);
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Timer3.attachInterrupt(twizyClockISR);
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#endif
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Serial.println(F(TWIZY_TAG "begin: done"));
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Serial.println(F(TWIZY_TAG "begin: done"));
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}
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}
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// You may need to lower this if your Arduino is too slow.
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// You may need to lower this if your Arduino is too slow.
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#define TWIZY_CAN_CLOCK_US 10000
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#define TWIZY_CAN_CLOCK_US 10000
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// VirtualBMS can use Timer1 (16 bit), Timer2 (8 bit) or Timer3 (16bit)
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// Select Timer2/3 if you need Timer1 for e.g. AltSoftSerial
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#define TWIZY_USE_TIMER 1
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// Timer2: precise resolutions depend on CPU type & clock frequency
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// i.e. Arduino Nano 16 MHz: 1000 = 1 ms / 2000 = 0.5 ms / 5000 = 0.2 ms / 10000 = 0.1 ms
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// Use lowest resolution possible to minimize side effects on AltSoftSerial
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#define TWIZY_TIMER2_RESOLUTION 1000
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// Set your MCP clock frequency here:
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// Set your MCP clock frequency here:
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#define TWIZY_CAN_MCP_FREQ MCP_16MHZ
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#define TWIZY_CAN_MCP_FREQ MCP_16MHZ
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// Set your SPI CS pin number here:
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// Set your SPI CS pin number here:
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#define TWIZY_CAN_CS_PIN 10
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#define TWIZY_CAN_CS_PIN 10
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// If you've connected the CAN module's IRQ pin:
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// Uncomment if you've connected the CAN module's IRQ pin:
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//#define TWIZY_CAN_IRQ_PIN 2
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//#define TWIZY_CAN_IRQ_PIN 2
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// Set your 3MW (ECU_OK) control pin here:
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// Set your 3MW (ECU_OK) control pin here:
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Reference in a new issue