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https://github.com/dexterbg/Twizy-Virtual-BMS.git
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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
parent
987c412db0
commit
f45ee40ae2
3 changed files with 162 additions and 46 deletions
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@ -1,5 +1,12 @@
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# History
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## Version 1.4.4 (2018-01-21)
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- Solved issue #1 (charger compatibility)
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- Closer reproduction of init phase frames
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- Detection of wakeup & shutdown by CAN activity
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## Version 1.3.0 (2017-08-30)
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- Added support to generate extended info frame 0x700
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@ -1,5 +1,5 @@
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name=Twizy Virtual BMS
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version=1.3.0
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version=1.4.4
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author=Michael Balzer
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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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@ -38,7 +38,7 @@
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#ifndef _TwizyVirtualBMS_h
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#define _TwizyVirtualBMS_h
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#define TWIZY_VBMS_VERSION "V1.3.0 (2017-08-30)"
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#define TWIZY_VBMS_VERSION "V1.4.4 (2018-01-21)"
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#ifndef TWIZY_TAG
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#define TWIZY_TAG "twizy."
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@ -50,6 +50,11 @@
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#include <mcp_can.h>
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#include <mcp_can_dfs.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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#include "TwizyVirtualBMS_config.h"
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#endif
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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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@ -64,9 +69,20 @@
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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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#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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// ==========================================================================
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// TEST CONFIGURATION
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// ==========================================================================
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#ifndef TWIZY_3MW_PULSE_START
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#define TWIZY_3MW_PULSE_START 58
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#define TWIZY_3MW_PULSE_LOW 41
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#define TWIZY_3MW_PULSE_155_A 31
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#define TWIZY_3MW_PULSE_HIGH 6
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#define TWIZY_3MW_PULSE_155_9 1
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#endif
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#ifndef TWIZY_SEND_INIT_FRAMES
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#define TWIZY_SEND_INIT_FRAMES 1
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#endif
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@ -298,8 +314,20 @@ private:
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// Twizy CAN model
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//
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// BMS init frames:
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byte id155_init[8] = { 0xFF, 0x97, 0xD0, 0x94, 0x00, 0x08, 0x00, 0x6F };
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byte id424_init[8] = { 0x00, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x00, 0x7F };
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byte id425_init[8] = { 0x1D, 0xFF, 0x4C, 0xFF, 0xFF, 0xFE, 0x01, 0xFF };
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byte id554_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00 };
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byte id556_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFA };
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byte id557_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xF0 };
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byte id55E_init[8] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00 };
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byte id55F_init[8] = { 0xFF, 0xFF, 0x73, 0x00, 0x00, 0xFF, 0xFF, 0xFF };
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byte id628_init[3] = { 0x00, 0x00, 0x00 };
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byte id659_init[4] = { 0xFF, 0xFF, 0xFF, 0xFF };
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// BMS (controlled by us):
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byte id155[8] = { 0x07, 0x97, 0xCA, 0x54, 0x52, 0x30, 0x00, 0x6C };
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byte id155[8] = { 0x07, 0x97, 0xCA, 0x54, 0x52, 0x30, 0x00, 0x6F };
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byte id424[8] = { 0x11, 0x40, 0x10, 0x20, 0x39, 0x63, 0x00, 0x3A };
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byte id425[8] = { 0x2A, 0x1F, 0x44, 0xFF, 0xFE, 0x42, 0x01, 0x20 };
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byte id554[8] = { 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x3A, 0x00 };
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@ -335,11 +363,16 @@ private:
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byte rxLen;
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byte rxBuf[8];
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// RX processing:
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void receiveCanMsgs();
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void process423();
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void process597();
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void process599();
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// CAN inactivity detection:
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byte rxTimeout = 0;
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#define CAN_RX_TIMEOUT 217 // x 10 = 2170 ms
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// -----------------------------------------------------
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// Twizy state machine
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@ -668,6 +701,19 @@ void TwizyVirtualBMS::setCanFilter(byte filterNum, unsigned int canId) {
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// Read and process Twizy CAN messages:
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void TwizyVirtualBMS::receiveCanMsgs() {
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// CAN wakeup?
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if (rxTimeout == 0) {
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// yes → 3MW ON, 155_2 → 9x:
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 1);
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id155[1] = 0x90 | (id155[1] & 0x0F);
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "CAN WAKEUP"));
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#endif
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}
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rxTimeout = CAN_RX_TIMEOUT + 1;
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while (twizyCAN.readMsgBuf(&rxId, &rxLen, rxBuf) == CAN_OK) {
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if (rxId == 0x423) {
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@ -742,6 +788,7 @@ void TwizyVirtualBMS::process597() {
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// Process DISPLAY frame 599:
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void TwizyVirtualBMS::process599() {
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// copy odometer to BMS frame 55E
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unsigned long odo = ((unsigned long)id599[0] << 24)
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| ((unsigned long)id599[1] << 16)
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@ -809,8 +856,22 @@ void TwizyVirtualBMS::ticker() {
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// Send CAN messages
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//
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if ((TWIZY_SEND_INIT_FRAMES == 1) && (twizyState == Init)) {
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// Send static init frames:
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sendMsg(0x155, sizeof(id155_init), id155_init);
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sendMsg(0x424, sizeof(id424_init), id424_init);
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sendMsg(0x425, sizeof(id425_init), id425_init);
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sendMsg(0x554, sizeof(id554_init), id554_init);
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sendMsg(0x556, sizeof(id556_init), id556_init);
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sendMsg(0x557, sizeof(id557_init), id557_init);
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sendMsg(0x55E, sizeof(id55E_init), id55E_init);
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sendMsg(0x55F, sizeof(id55F_init), id55F_init);
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sendMsg(0x628, sizeof(id628_init), id628_init);
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sendMsg(0x659, sizeof(id659_init), id659_init);
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}
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else {
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// Send live frames:
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sendMsg(0x155, sizeof(id155), id155);
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if (ms100) {
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sendMsg(0x424, sizeof(id424), id424);
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sendMsg(0x425, sizeof(id425), id425);
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@ -836,23 +897,52 @@ void TwizyVirtualBMS::ticker() {
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if (ms1000 && (id700[1] & 0xE0) != 0xE0) {
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sendMsg(0x700, sizeof(id700), id700);
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}
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}
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//
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// Create 3MW pulse cycle
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// (high 200ms → low 200ms → high)
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// Create 3MW / id155 pulse cycle
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//
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if (counter3MW > 0) {
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--counter3MW;
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// 3MW low after 200 ms:
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if (counter3MW == 20) {
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// 3MW pulse start:
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if (counter3MW == TWIZY_3MW_PULSE_LOW) {
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "PC: 3MW LOW"));
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#endif
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}
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// 3MW high after 400 ms (pulse finished):
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else if (counter3MW == 0) {
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// 155_2 → A:
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if (counter3MW == TWIZY_3MW_PULSE_155_A) {
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id155[1] = 0xA0 | (id155[1] & 0x0F);
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "PC: 155_2 A"));
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#endif
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}
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// 3MW pulse end:
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if (counter3MW == TWIZY_3MW_PULSE_HIGH) {
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 1);
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "PC: 3MW HIGH"));
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#endif
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}
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// 155_2 → 9:
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if (counter3MW == TWIZY_3MW_PULSE_155_9) {
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id155[1] = 0x90 | (id155[1] & 0x0F);
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "PC: 155_2 9"));
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#endif
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}
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// Finish:
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if (counter3MW == 0) {
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id155[3] = 0x54;
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "PC: DONE"));
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#endif
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}
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}
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@ -865,10 +955,6 @@ void TwizyVirtualBMS::ticker() {
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// Transition to Ready?
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case Init:
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// …from Init after first 100 ms:
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if (clockCnt < 9) {
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break;
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}
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case StopDrive:
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case StopCharge:
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case StopTrickle:
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@ -934,6 +1020,21 @@ void TwizyVirtualBMS::ticker() {
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} // if (twizyState == Error)
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//
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// CAN activity timeout?
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//
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if ((rxTimeout > 0) && (--rxTimeout == 0)) {
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// yes, switch off:
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enterState(Off);
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "CAN INACTIVE → OFF"));
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#endif
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// TODO: enter sleep mode here
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}
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//
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// Callback for BMS ticker code:
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//
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@ -1035,13 +1136,18 @@ void TwizyVirtualBMS::enterState(TwizyState newState) {
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switch (newState) {
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case Off:
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id155[0] = 0xFF;
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id155[3] = 0x94;
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id424[0] = 0x00;
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id425[0] = 0x1D;
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counter3MW = 0;
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break;
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case Init:
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id155[0] = 0xFF;
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id155[3] = 0x94;
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id424[0] = 0x00;
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id425[0] = 0x1D;
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
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counter3MW = 0;
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clockCnt = 0;
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break;
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@ -1052,6 +1158,7 @@ void TwizyVirtualBMS::enterState(TwizyState newState) {
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id424[0] |= 0x80;
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id425[0] = 0x24;
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 0);
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counter3MW = 0;
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break;
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case Ready:
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@ -1065,10 +1172,12 @@ void TwizyVirtualBMS::enterState(TwizyState newState) {
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}
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id425[0] = 0x24;
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// if switching on...
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if (digitalRead(TWIZY_3MW_CONTROL_PIN) == 0) {
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if (twizyState == Init) {
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// ...start 3MW pulse cycle:
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digitalWrite(TWIZY_3MW_CONTROL_PIN, 1);
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counter3MW = 40;
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counter3MW = TWIZY_3MW_PULSE_START + 1;
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#if TWIZY_DEBUG_LEVEL >= 1
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Serial.println(F(TWIZY_TAG "3MW START"));
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#endif
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}
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break;
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