Support for volvo PS pump

tonn0297 · April 11, 2025, 12:45pm

It wuld be awsome to use realdash to control a volvo power sterring pump over can, you can then use RD to adjust pump speed with gps location, speed, temp or alike. heres the can data ive found:

github.com/rusefi/rusefi

firmware/controllers/lua/examples/Volvo-electric-power-steering-pump.txt

master

-- see also https://rusefi.com/forum/viewtopic.php?f=4&t=2329

-- "alive" message from pump
canRxAdd(0x1B200002)

local pumpAlive = Timer.new()

function onCanRx(bus, id, dlc, data)
	if id == 0x1B200002 then
		pumpAlive:reset()
	end
end

local data_0x1ae0092c = { 0x00, 0x00, 0x22, 0xe0, 0x41, 0x90, 0x00, 0x00 }
local data_0x02104136 = { 0xbb, 0x00, 0x3f, 0xff, 0x06, 0xe0, 0x00, 0x00 }

local slowCounter = 0
local slowRoll = 0

local slowRollTable = { 0x00, 0x40, 0x80, 0xC0 }

This file has been truncated. show original

github.com/NMSTEC/Volvo_EPS_FREE

src/main.cpp

main

/* IMPORTANT: USE ARDUINO PIN 3 FOR PWM INPUT. Also make sure your input is protected by at least a resistor, 100kohm, if its a 5v pwm signal. If 12v you may want a level shifter
or at minimum a voltage divider.

MAKE SURE TO SET OUTPUT MODE ON HALTECH TO DUTY CYCLE.
*/

#include "mcp_can.h"
#include <SPI.h>


MCP_CAN CAN(9); //default for those can bus shields 
#define CAN_INT 2 //default for those can bus shields 
char msgString[128];//terrible way of comparing data
long unsigned int rxId;//ID of incoming message
long unsigned int hi = 0x1B200002;
unsigned char len = 0;//not used here, since we dont care about contents of message
unsigned char rxBuf[8];//not used here, since we dont care about contents of message
unsigned char keepAlive[8] = {0x00, 0x00, 0x22, 0xE0, 0x41, 0x90, 0x00, 0x00};//counter KA
unsigned char speed[8] = {0xBB, 0x00, 0x3F, 0xFF, 0x06, 0xE0, 0x00, 0x00};//counter KA
unsigned char slowRollTable[4] = { 0x00, 0x40, 0x80, 0xC0};

This file has been truncated. show original

gist.github.com

https://gist.github.com/mck1117/626174d991183cc72802074f954db97b/

pump.lua

-- "alive" message from pump
canRxAdd(0x1B200002)

local pumpAlive = Timer.new()

function onCanRx(bus, id, dlc, data)
	if id == 0x1B200002 then
		pumpAlive:reset()
	end
end

This file has been truncated. show original