Hill Start Assist

The hill start assist allows the driver to launch the vehicle without a roll back while the driver is moving there foot from the brake pedal to the accelerator pedal. The EBCM calculates the brake pressure, which is needed to hold the vehicle on an incline and locks that pressure for a certain time by commanding the appropriate solenoid valves ON and OFF when the brake pedal is released. Hill start assist is activated when the EBCM determines that the driver wishes to move the vehicle up-hill, either backwards or forwards.

The following inputs are used for hill start assist feature:

• Brake switch
• Brake pressure
• Longitudinal acceleration
• Engine torque
• Reverse gear information
• Accelerator pedal position
• Vehicle speed