Toyota CH-R Service Manual: System Description

Toyota CH-R Service Manual / Power Assist Systems / Power Steering System / System Description

SYSTEM DESCRIPTION

DESCRIPTION

The power steering system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist steering effort.

The power steering ECU assembly determines the direction and the amount of assist power in accordance with the vehicle speed signals and signals from the torque sensor built into the electric power steering column sub-assembly. As a result, the power steering ECU assembly adjusts the steering effort so that it is lighter during low speed driving and heavier during high speed driving.

(a) Power steering ECU assembly:

The power steering ECU assembly calculates assist power based on steering torque signals from the torque sensor and vehicle speed signals from the skid control ECU (brake actuator assembly).

(b) Torque sensor:

The torque sensor detects the steering effort generated when the steering wheel is turned and converts it to an electrical signal.

The power steering motor generates torque in accordance with the current from the power steering ECU to assist the steering effort.

System Diagram

SYSTEM DIAGRAM ...

Calibration

CALIBRATION TORQUE SENSOR ZERO POINT CALIBRATION (USING TECHSTREAM) NOTICE: Perform torque sensor zero point calibration if any of the following conditions occur: The power steering ECU a ...

Other materials:

Toyota CH-R Service Manual > Wireless Door Lock Control System(w/ Smart Key System): Wireless Door Lock Tuner Circuit Malfunction (B1242)
DESCRIPTION The electrical key and TPMS receiver assembly is used to receive radio waves related to the entry functions of the electrical key transmitter sub-assembly. The certification ECU (smart key ECU assembly) decodes the requested electrical key transmitter sub-assembly operation by ide ...

Toyota CH-R Owners Manual > For safe use: Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification system. This system detects the conditions of the front passenger seat and activates or deactivates the devices for the front passenger. SRS warning light Seat belt reminder light "AIR BAG O ...