ecu

  1. J

    How to test electric power steering (EPS) for stability on adverse road conditions?

    Please consider commercial vehicle equipped with EPS ECU and other ECUs such as Antilock brake system (ABS), engine, transmission, Body Control Module (BCM), etc. I would like to come up with tests for testing EPS on adverse road conditions such as wet or icy pavement for vehicle stability...
  2. J

    Please explain AIR1 J1939 message.

    Consider a commercial truck. The Electronic Brake Systems (EBS) ECU receives following message from some other ECU. Please explain this message. From where does some other module acquire the Suspect Parameters Number (SPNs) to send to EBS ECU. What does EBS do with the SPNs it receives?
  3. J

    Are Cross-wind compensation and Road crown compensation functions inputs to LKA function?

    Please consider Active Steering Assist Electronic Control Unit (Steering ECU) used in a commercial truck. It has Lane Keep Assist (LKA) function, Cross-wind compensation, and Road crown compensation. This ECU is composed of a camera input, and driver outputs to control the torque overlay...
  4. J

    What pins in Radar ECU and Camera ECU should be detected for OC, STG, and STB faults and why?

    A typical Electronic Control Unit(ECU) performs Open Circuit(OC), Short to Ground(STG), and Short to Battery(STB) Diagnostics on selected internal and external pins in the ECU. For example, consider a external output pin. There is a wire connected from this pin to somewhere else. If this wire...
  5. M

    which ecu activates "engine exhaust fault lamp"

    i am working on CAN messages in haima s5 and i want to recognize all of the activated light faults in ICM (instrument control system). can you tell me which module activates "engine exhaust fault lamp"?
  6. B

    Power supply design in automotive for 12V and 48V battery system

    Hello all , I wish to design a switch mode power supply , dc-dc buck-boost converter, ('with Vin - from 12V to 48V ) and Vout from 2V to 20V with Iout - upto 6A, There are many IC's available from Ltspice and Texas Instruments. I have design the block diagram , but I am not sure what should be...
  7. B

    Switch mode DC/DC regulator IC and system design

    Hello all, I am currently working on a project where, I have to measure the voltage and current at the load connected to (ECU) Electronic control unit in a truck. The battery Voltage Vin (12V- 48V) has to be varied . The input from the battery will be given to Switch mode DC\DC regulator IC...
  8. B

    Ltspice 8390 for Automotive Application

    Hello all, I am currently working on a project where, I have to measure the voltage and current at the load connected to (ECU) Electronic control unit in a truck. The battery Voltage Vin (12V- 48V) has to be varied . The input from the battery will be given to Switch mode DC\DC regulator IC...
  9. H

    *Wiring temp sender to kick fan in?*

    2003 Fiesta 1.25: had problems with the fiesta overheating even though temp gauge says normal temp on dashboard. After box ticking all the usual culprits (relays, fuses, isolating fan to test it works which it does etc) found out it's the ECU ignoring any messages from the temperature sensor...
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