Version 1.4.4:

- Solved issue #1 (charger compatibility)
- Closer reproduction of init phase frames
- Detection of wakeup & shutdown by CAN activity
This commit is contained in:
Michael Balzer 2018-01-30 17:05:50 +01:00
parent 987c412db0
commit f45ee40ae2
3 changed files with 162 additions and 46 deletions

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@ -1,5 +1,12 @@
# History # History
## Version 1.4.4 (2018-01-21)
- Solved issue #1 (charger compatibility)
- Closer reproduction of init phase frames
- Detection of wakeup & shutdown by CAN activity
## Version 1.3.0 (2017-08-30) ## Version 1.3.0 (2017-08-30)
- Added support to generate extended info frame 0x700 - Added support to generate extended info frame 0x700

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@ -1,5 +1,5 @@
name=Twizy Virtual BMS name=Twizy Virtual BMS
version=1.3.0 version=1.4.4
author=Michael Balzer author=Michael Balzer
maintainer=Michael Balzer <dexter@dexters-web.de> maintainer=Michael Balzer <dexter@dexters-web.de>
sentence=Emulation of Renault Twizy BMS (battery management system) sentence=Emulation of Renault Twizy BMS (battery management system)

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@ -38,7 +38,7 @@
#ifndef _TwizyVirtualBMS_h #ifndef _TwizyVirtualBMS_h
#define _TwizyVirtualBMS_h #define _TwizyVirtualBMS_h
#define TWIZY_VBMS_VERSION "V1.3.0 (2017-08-30)" #define TWIZY_VBMS_VERSION "V1.4.4 (2018-01-21)"
#ifndef TWIZY_TAG #ifndef TWIZY_TAG
#define TWIZY_TAG "twizy." #define TWIZY_TAG "twizy."
@ -50,6 +50,11 @@
#include <mcp_can.h> #include <mcp_can.h>
#include <mcp_can_dfs.h> #include <mcp_can_dfs.h>
#ifndef _TwizyVirtualBMS_config_h
#warning "Fallback to default TwizyVirtualBMS_config.h -- you should copy this into your sketch folder"
#include "TwizyVirtualBMS_config.h"
#endif
#ifndef TWIZY_USE_TIMER #ifndef TWIZY_USE_TIMER
#define TWIZY_USE_TIMER 1 #define TWIZY_USE_TIMER 1
#endif #endif
@ -64,9 +69,20 @@
#error "TWIZY_USE_TIMER invalid, please set to 1, 2 or 3!" #error "TWIZY_USE_TIMER invalid, please set to 1, 2 or 3!"
#endif #endif
#ifndef _TwizyVirtualBMS_config_h // ==========================================================================
#warning "Fallback to default TwizyVirtualBMS_config.h -- you should copy this into your sketch folder" // TEST CONFIGURATION
#include "TwizyVirtualBMS_config.h" // ==========================================================================
#ifndef TWIZY_3MW_PULSE_START
#define TWIZY_3MW_PULSE_START 58
#define TWIZY_3MW_PULSE_LOW 41
#define TWIZY_3MW_PULSE_155_A 31
#define TWIZY_3MW_PULSE_HIGH 6
#define TWIZY_3MW_PULSE_155_9 1
#endif
#ifndef TWIZY_SEND_INIT_FRAMES
#define TWIZY_SEND_INIT_FRAMES 1
#endif #endif
@ -298,8 +314,20 @@ private:
// Twizy CAN model // Twizy CAN model
// //
// BMS init frames:
byte id155_init[8] = { 0xFF, 0x97, 0xD0, 0x94, 0x00, 0x08, 0x00, 0x6F };
byte id424_init[8] = { 0x00, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x00, 0x7F };
byte id425_init[8] = { 0x1D, 0xFF, 0x4C, 0xFF, 0xFF, 0xFE, 0x01, 0xFF };
byte id554_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00 };
byte id556_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFA };
byte id557_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0 };
byte id55E_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 };
byte id55F_init[8] = { 0xFF, 0xFF, 0x73, 0x00, 0x00, 0xFF, 0xFF, 0xFF };
byte id628_init[3] = { 0x00, 0x00, 0x00 };
byte id659_init[4] = { 0xFF, 0xFF, 0xFF, 0xFF };
// BMS (controlled by us): // BMS (controlled by us):
byte id155[8] = { 0x07, 0x97, 0xCA, 0x54, 0x52, 0x30, 0x00, 0x6C }; byte id155[8] = { 0x07, 0x97, 0xCA, 0x54, 0x52, 0x30, 0x00, 0x6F };
byte id424[8] = { 0x11, 0x40, 0x10, 0x20, 0x39, 0x63, 0x00, 0x3A }; byte id424[8] = { 0x11, 0x40, 0x10, 0x20, 0x39, 0x63, 0x00, 0x3A };
byte id425[8] = { 0x2A, 0x1F, 0x44, 0xFF, 0xFE, 0x42, 0x01, 0x20 }; byte id425[8] = { 0x2A, 0x1F, 0x44, 0xFF, 0xFE, 0x42, 0x01, 0x20 };
byte id554[8] = { 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x00 }; byte id554[8] = { 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x00 };
@ -335,11 +363,16 @@ private:
byte rxLen; byte rxLen;
byte rxBuf[8]; byte rxBuf[8];
// RX processing:
void receiveCanMsgs(); void receiveCanMsgs();
void process423(); void process423();
void process597(); void process597();
void process599(); void process599();
// CAN inactivity detection:
byte rxTimeout = 0;
#define CAN_RX_TIMEOUT 217 // x 10 = 2170 ms
// ----------------------------------------------------- // -----------------------------------------------------
// Twizy state machine // Twizy state machine
@ -668,6 +701,19 @@ void TwizyVirtualBMS::setCanFilter(byte filterNum, unsigned int canId) {
// Read and process Twizy CAN messages: // Read and process Twizy CAN messages:
void TwizyVirtualBMS::receiveCanMsgs() { void TwizyVirtualBMS::receiveCanMsgs() {
// CAN wakeup?
if (rxTimeout == 0) {
// yes → 3MW ON, 155_2 → 9x:
digitalWrite(TWIZY_3MW_CONTROL_PIN, 1);
id155[1] = 0x90 | (id155[1] & 0x0F);
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "CAN WAKEUP"));
#endif
}
rxTimeout = CAN_RX_TIMEOUT + 1;
while (twizyCAN.readMsgBuf(&rxId, &rxLen, rxBuf) == CAN_OK) { while (twizyCAN.readMsgBuf(&rxId, &rxLen, rxBuf) == CAN_OK) {
if (rxId == 0x423) { if (rxId == 0x423) {
@ -742,6 +788,7 @@ void TwizyVirtualBMS::process597() {
// Process DISPLAY frame 599: // Process DISPLAY frame 599:
void TwizyVirtualBMS::process599() { void TwizyVirtualBMS::process599() {
// copy odometer to BMS frame 55E // copy odometer to BMS frame 55E
unsigned long odo = ((unsigned long)id599[0] << 24) unsigned long odo = ((unsigned long)id599[0] << 24)
| ((unsigned long)id599[1] << 16) | ((unsigned long)id599[1] << 16)
@ -809,8 +856,22 @@ void TwizyVirtualBMS::ticker() {
// Send CAN messages // Send CAN messages
// //
if ((TWIZY_SEND_INIT_FRAMES == 1) && (twizyState == Init)) {
// Send static init frames:
sendMsg(0x155, sizeof(id155_init), id155_init);
sendMsg(0x424, sizeof(id424_init), id424_init);
sendMsg(0x425, sizeof(id425_init), id425_init);
sendMsg(0x554, sizeof(id554_init), id554_init);
sendMsg(0x556, sizeof(id556_init), id556_init);
sendMsg(0x557, sizeof(id557_init), id557_init);
sendMsg(0x55E, sizeof(id55E_init), id55E_init);
sendMsg(0x55F, sizeof(id55F_init), id55F_init);
sendMsg(0x628, sizeof(id628_init), id628_init);
sendMsg(0x659, sizeof(id659_init), id659_init);
}
else {
// Send live frames:
sendMsg(0x155, sizeof(id155), id155); sendMsg(0x155, sizeof(id155), id155);
if (ms100) { if (ms100) {
sendMsg(0x424, sizeof(id424), id424); sendMsg(0x424, sizeof(id424), id424);
sendMsg(0x425, sizeof(id425), id425); sendMsg(0x425, sizeof(id425), id425);
@ -836,23 +897,52 @@ void TwizyVirtualBMS::ticker() {
if (ms1000 && (id700[1] & 0xE0) != 0xE0) { if (ms1000 && (id700[1] & 0xE0) != 0xE0) {
sendMsg(0x700, sizeof(id700), id700); sendMsg(0x700, sizeof(id700), id700);
} }
}
// //
// Create 3MW pulse cycle // Create 3MW / id155 pulse cycle
// (high 200ms → low 200ms → high)
// //
if (counter3MW > 0) { if (counter3MW > 0) {
--counter3MW; --counter3MW;
// 3MW low after 200 ms:
if (counter3MW == 20) { // 3MW pulse start:
if (counter3MW == TWIZY_3MW_PULSE_LOW) {
digitalWrite(TWIZY_3MW_CONTROL_PIN, 0); digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "PC: 3MW LOW"));
#endif
} }
// 3MW high after 400 ms (pulse finished): // 155_2 → A:
else if (counter3MW == 0) { if (counter3MW == TWIZY_3MW_PULSE_155_A) {
id155[1] = 0xA0 | (id155[1] & 0x0F);
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "PC: 155_2 A"));
#endif
}
// 3MW pulse end:
if (counter3MW == TWIZY_3MW_PULSE_HIGH) {
digitalWrite(TWIZY_3MW_CONTROL_PIN, 1); digitalWrite(TWIZY_3MW_CONTROL_PIN, 1);
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "PC: 3MW HIGH"));
#endif
}
// 155_2 → 9:
if (counter3MW == TWIZY_3MW_PULSE_155_9) {
id155[1] = 0x90 | (id155[1] & 0x0F);
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "PC: 155_2 9"));
#endif
}
// Finish:
if (counter3MW == 0) {
id155[3] = 0x54; id155[3] = 0x54;
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "PC: DONE"));
#endif
} }
} }
@ -865,10 +955,6 @@ void TwizyVirtualBMS::ticker() {
// Transition to Ready? // Transition to Ready?
case Init: case Init:
// …from Init after first 100 ms:
if (clockCnt < 9) {
break;
}
case StopDrive: case StopDrive:
case StopCharge: case StopCharge:
case StopTrickle: case StopTrickle:
@ -934,6 +1020,21 @@ void TwizyVirtualBMS::ticker() {
} // if (twizyState == Error) } // if (twizyState == Error)
//
// CAN activity timeout?
//
if ((rxTimeout > 0) && (--rxTimeout == 0)) {
// yes, switch off:
enterState(Off);
digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
#if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "CAN INACTIVE → OFF"));
#endif
// TODO: enter sleep mode here
}
// //
// Callback for BMS ticker code: // Callback for BMS ticker code:
// //
@ -1035,13 +1136,18 @@ void TwizyVirtualBMS::enterState(TwizyState newState) {
switch (newState) { switch (newState) {
case Off: case Off:
id155[0] = 0xFF;
id155[3] = 0x94;
id424[0] = 0x00;
id425[0] = 0x1D;
counter3MW = 0;
break;
case Init: case Init:
id155[0] = 0xFF; id155[0] = 0xFF;
id155[3] = 0x94; id155[3] = 0x94;
id424[0] = 0x00; id424[0] = 0x00;
id425[0] = 0x1D; id425[0] = 0x1D;
digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
counter3MW = 0;
clockCnt = 0; clockCnt = 0;
break; break;
@ -1052,6 +1158,7 @@ void TwizyVirtualBMS::enterState(TwizyState newState) {
id424[0] |= 0x80; id424[0] |= 0x80;
id425[0] = 0x24; id425[0] = 0x24;
digitalWrite(TWIZY_3MW_CONTROL_PIN, 0); digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
counter3MW = 0;
break; break;
case Ready: case Ready:
@ -1065,10 +1172,12 @@ void TwizyVirtualBMS::enterState(TwizyState newState) {
} }
id425[0] = 0x24; id425[0] = 0x24;
// if switching on... // if switching on...
if (digitalRead(TWIZY_3MW_CONTROL_PIN) == 0) { if (twizyState == Init) {
// ...start 3MW pulse cycle: // ...start 3MW pulse cycle:
digitalWrite(TWIZY_3MW_CONTROL_PIN, 1); counter3MW = TWIZY_3MW_PULSE_START + 1;
counter3MW = 40; #if TWIZY_DEBUG_LEVEL >= 1
Serial.println(F(TWIZY_TAG "3MW START"));
#endif
} }
break; break;