VW e-Up: added acceleration support

Author: dexterbg

vehicle/OVMS.V3/changes.txt

@@ -1,6 +1,8 @@
 Open Vehicle Monitor System v3 - Change log
 
 ????-??-?? ???  ???????  OTA release
+- VW e-Up: added acceleration support; OBD by reading from ECU,
+    T26 deriving from speed changes
 
 2021-09-29 MB  3.2.017  OTA release
 - Added VEHICLE_POLL_TYPE_ROUTINECONTROL to UDS (ISO 14229) service identifiers list

vehicle/OVMS.V3/components/vehicle_vweup/src/vehicle_vweup.cpp

@@ -29,7 +29,7 @@
 #include <string>
 static const char *TAG = "v-vweup";
 
-#define VERSION "0.20.2"
+#define VERSION "0.21.1"
 
 #include <stdio.h>
 #include <string>

vehicle/OVMS.V3/components/vehicle_vweup/src/vweup_obd.cpp

@@ -266,6 +266,7 @@ void OvmsVehicleVWeUp::OBDInit()
   // Add high priority PIDs:
   m_poll_vector.insert(m_poll_vector.end(), {
     {VWUP_MOT_ELEC, UDS_READ, VWUP_MOT_ELEC_POWER_MOT,  {  0,  0,  0,  1}, 1, ISOTP_STD},
+    {VWUP_MOT_ELEC, UDS_READ, VWUP_MOT_ELEC_ACCEL,      {  0,  0,  0,  1}, 1, ISOTP_STD},
   });
 
   // Add model year specific AC charger PIDs:
@@ -1154,6 +1155,13 @@ void OvmsVehicleVWeUp::IncomingPollReply(canbus *bus, uint16_t type, uint16_t pi
         VALUE_LOG(TAG, "VWUP_MOT_ELEC_POWER_MOT=%f => %f", value, StdMetrics.ms_v_inv_power->AsFloat());
       }
       break;
+    case VWUP_MOT_ELEC_ACCEL:
+      if (PollReply.FromInt16("VWUP_MOT_ELEC_ACCEL", value)) {
+        float accel = value / 1000;
+        StdMetrics.ms_v_pos_acceleration->SetValue(accel);
+        VALUE_LOG(TAG, "VWUP_MOT_ELEC_ACCEL=%f => %f", value, accel);
+      }
+      break;
 
     case VWUP_MOT_ELEC_STATE:
       if (PollReply.FromUint8("VWUP_MOT_ELEC_STATE", ivalue) && ivalue != 255) {

vehicle/OVMS.V3/components/vehicle_vweup/src/vweup_obd.h

@@ -112,6 +112,7 @@ using namespace std;
 #define VWUP_MOT_ELEC_VIN               0xF802    // Vehicle Identification Number
 #define VWUP_MOT_ELEC_SPEED             0xF40D    // Speed [kph]
 #define VWUP_MOT_ELEC_POWER_MOT         0x147E    // Inverter output / motor input power level [kW]
+#define VWUP_MOT_ELEC_ACCEL             0x12B0    // Acceleration/deceleration [m/s²]
 
 #define VWUP_BRK_TPMS                   0x1821
 

vehicle/OVMS.V3/components/vehicle_vweup/src/vweup_t26.cpp

@@ -394,6 +394,7 @@ void OvmsVehicleVWeUp::IncomingFrameCan3(CAN_frame_t *p_frame)
 
     case 0x320: // Speed
       StandardMetrics.ms_v_pos_speed->SetValue(((d[4] << 8) + d[3] - 1) / 190);
+      CalculateAcceleration(); // only necessary until we find acceleration on T26
       break;
 
     case 0x527: // Outdoor temperature