Telescoping Wheel Motor: Description and Operation

This system operates with both the tilt function and telescopic function driven automatically by the motor arid controlled by the ECU. The steering can be adjusted steplessly forward and back, and in vertical directions, to provide the most suitable steering position for easy driving, with automatic movement of the steering to a position which facilitates getting in and out of the vehicle.

The driver can have the most appropriate driving position memorized by operating the power seat, remote control mirror and seat belt anchorage (Driver's) together with the tilt and telescopic steering.

Current is always applied through the PWR fuse to TERMINAL +B of the tilt and telescopic ECU and through the MPX-B fuse to TERMINAL ECUB of the tilt and telescopic ECU.

With the ignition SW turned ON, the current flows from PWR-IG fuse to TERMINAL IG of the tilt and telescopic ECU.

1. MANUAL TILT OPERATION
If the ignition key is inserted in the ignition key cylinder and manual operation of the tilt and telescopic does not occur within 30 seconds, manual operation is cancelled, however, manual operation is restored if the ignition SW is turned to ON, or if the ignition key is removed and then reinserted.

When the ignition key is inserted into the ignition key cylinder (Unlock warning SW ON), a signal is input to tilt and telescopic ECU through communication control of the body ECU and door ECU etc. If the manual SW is pushed to the TILT UP side, current flows from TERMINAL VC of the tilt and telescopic ECU to TERMINAL MSW of the tilt and telescopic ECU passing through the manual SW. (The ECU detects the manual SW position by the volume of current.)

As a result, tilt and telescopic ECU operates and the current to TERMINAL +B of the ECU flows from TERMINAL TIM+ to TERMINAL TIM+ of the tilt and telescopic unit to tilt control motor to TERMINAL TIM- of the tilt and telescopic unit to TERMINAL TIM- of the tilt and telescopic ECU to TERMINAL GND to GROUND, and the tilt up function operates as long as the manual SW is pushed to the TILT UP side.

For TILT DOWN operation, when the manual SW is pushed to the down side, the current flowing from the ECU to motor flows to TERMINAL TIM- of the tilt and telescopic ECU to TERMINAL TIM- of the tilt and telescopic unit to tilt control motor to TERMINAL TIM+ of the tilt and telescopic unit to TERMINAL TIM+ of the tilt and telescopic ECU, so the motor rotates in the reverse direction to tilt up operation, and tilt down operation occurs only while the manual SW is being pushed.

2. MANUAL TELESCOPIC OPERATION
If the ignition key is inserted in the ignition key cylinder and manual operation of the tilt and telescopic does riot occur within 30 seconds, manual operation is cancelled, however, manual operation is restored if the ignition SW is turned to ON, or if the ignition key is removed and then reinserted.

When the ignition key is inserted into the ignition key cylinder (Unlock warning SW ON), a signal is input to tilt and telescopic ECU through communication control of the body ECU and door ECU etc. When the manual SW is pushed toward TELESCOPIC SHORT side, current flows from TERMINAL VC of the tilt and telescopic ECU to TERMINAL MSW of the tilt and telescopic ECU through the manual SW.

As a result, the tilt and telescopic ECU operates and the current to TERMINAL +B of the tilt and telescopic ECU flows from TERMINAL TEM+ of the tilt and telescopic ECU to TERMINAL TEM+ of the telescopic position sensor and motor to telescopic control motor to TERMINAL TEM- of the telescopic position sensor and motor to TERMINAL TEM- of the tilt and telescopic ECU to TERMINAL GND to GROUND, and TELESCOPIC SHORT operation occurs as long as the manual SW is pushed to the TELESCOPIC SHORT side.

For TELESCOPIC LONG operation, when the manual SW is pushed to the telescopic long side, current flowing from tilt and telescopic ECU to the motor flows through TERMINAL TEM- of the tilt and telescopic ECU to TERMINAL TEM- of the telescopic position sensor and motor to telescopic control motor to TERMINAL TEM+ of the telescopic position sensor and motor to TERMINAL TEM+ of the tilt and telescopic ECU to TERMINAL GND to GROUND.

As a result, the motor rotates in reverse to the telescopic short mode and telescopic long operation occurs as long as the manual SW is pushed to the TELESCOPIC LONG side.

3. AUTO RETURN OPERATION
When the ignition key is inserted into the key cylinder (The unlock warning SW is ON), the signal is input to the tilt and telescopic ECU through communication control of body ECU and door ECU etc. This activates the ECU to automatically return the steering to the position set before the ignition key has been removed.

4. AUTO AWAY OPERATION
When the ignition key is turned from ON to OFF and removed from the key cylinder (The unlock warning SW is OFF), the signal is input to the tilt and telescopic ECU through communication control of body ECU and door ECU etc. This activates the ECU to automatically move the steering to the top tilt step position and maximum telescopic retract position.

5. DRIVING POSITION MEMORY FUNCTION
The pulse signals detected by the tilt and telescopic sensors are input to the ECU. This makes it possible to store and recall the desired driving position through communication control of body ECU and door ECU etc.