Telescoping Wheel Motor: Description and Operation

This system operates with both the Tilt function and Telescopic function driven automatically by the motor and controlled by the ECU. The steering can be adjusted steplessly forward and back, and up and down, 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.

Current is always applied through the Power fuse to TERMINAL +B of the Tilt and Power Telescopic ECU and through the Dome fuse to TERMINAL ECU-Bof the Tilt and Power Telescopic ECU.
With the Ignition SW turned ON, the current flows from ECU-IG fuse to TERMINAL IG of the Tilt and Power Telescopic ECU.

1. MANUAL TILT OPERATION
When the Ignition key is inserted into the Ignition key cylinder (unlock warning SW ON), a signal is input to TERMINAL MSW of the Tilt and Power Telescopic ECU. If the manual SW is pushed to the "Tilt Up" side, current flows from TERMINAL VC of the Tilt and Power Telescopic ECU to TERMINAL MSW of the Tilt and Power Telescopic ECU passing through the manual SW. (The ECU detects the manual SW position by the volume of current.)
As a result, Tilt and Power Telescopic ECU operates and the current to TERMINAL +B of the ECU flows from TERMINAL TIM+ --> TERMINAL 3 of Tilt control motor --> TERMINAL 9 --> TERMINAL TIM- of the Tilt and Power Telescopic ECU --> TERMINAL GND --> 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 "Tilt Down" side, the current flowing from ECU to motor flows to TERMINAL TIM- of the Tilt and Power Telescopic ECU --> TERMINAL 9 of Tilt control motor --> TERMINAL 3 --> TERMINAL TIM+ of the Tilt and Power 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
When the Ignition key is inserted in the Ignition key cylinder (unlock warning SW ON), the signal for this in input to TERMINAL UWSW of the Tilt and Power Telescopic ECU (Hereafter Tilt and Power Telescopic ECU) telesco short. When the manual SW is moved to the "Telesco Short" side, current flows from TERMINAL VC of the Tilt and Power Telescopic ECU, through the manual SW to TERMINAL MSW of the Tilt and Power Telescopic ECU, this causes the Tilt and Power Telescopic ECU to operate, sending current from TERMINAL +B to TERMINAL RM+ --> TERMINAL 2 of Telescopic lock control motor --> TERMINAL 1 --> TERMINAL RM- of Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground, releasing the Telescopic lock, current to operate the Telescopic unit then flows from TERMINAL TEM- of the Tilt and Power Telescopic ECU --> TERMINAL 2 of the Telescopic control motor--> TERMINAL 1 --> TERMINAL TEM- of Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground, so the Telescopic unit changes from extended position to short position. When the Telescopic movement ends, current flows from TERMINAL RM- of the Tilt and Power Telescopic ECU to TERMINAL 1 of the Telescopic lock control motor--> TERMINAL 2 --> TERMINAL RM+ of Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground, activating the Telescopic lock control motor to lock the Telescopic unit.
When the manual SW is moved to the "Telesco Long" position, the Tilt and Power Telescopic ECU activate the Telescopic lock control motor to release the Telescopic lock the same way safer telesco short operation above. Then current flows from TERMINAL TEM- of the Tilt and Power Telescopic ECU to TERMINAL 1 of Telescopic control motor --> TERMINAL 2 --> TERMINAL TEM+ of Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground. As a result, the Telescopic control motor rotates in the opposite direction to Telescopic short operation, and the Telescopic unit extends. When the Telescopic movement ends, the Tilt and Power Telescopic ECU activates the Telescopic lock control motor to lock the Telescopic unit, the same as in Telescopic short operation.

3. AUTO AWAY OPERATION
When the Ignition SW is turned from ON to OFF, the current stops flowing from ECU-IG fuse to TERMINAL IG of the Tilt and Power Telescopic ECU and is input as a signal that the Ignition SW is OFF. When the auto SW is turned ON, an auto SW ON, signal is input to TERMINAL UWSW of the Tilt and Power Telescopic ECU.
If the Ignition key is removed from the Ignition key cylinder (unlock warning SW off) at this time, a signal is input from TERMINAL UWSW of the Tilt and Power Telescopic ECU. Also, the Tilt position sensor (Comb. SW) inputs into TERMINAL TIS of the Tilt and Telescopic ECU a signal of the steering Tilt position just before the Ignition SW (for unlock warning) is turned from ON to OFF.
As a result, the Tilt and Power Telescopic ECU operates and the current to TERMINAL +B of the Tilt and Power Telescopic flows from TERMINAL TIM+ of the Tilt and Power Telescopic ECU --> TERMINAL 3 of Tilt control motor --> TERMINAL 9 --> TERMINAL TIM- of the Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground, causing the motor to rotate so that Tilt-up operation occurs automatically.
At the same time, the current from TERMINAL +B of the Tilt and Power Telescopic ECU to TERMINAL TEM+ flows from TERMINAL 7of Tilt and Power Telescopic sensor and motor --> TERMINAL 2 of Telescopic control motor --> TERMINAL 1 --> TERMINAL 8 of Tilt and Power Telescopic sensor and motor --> TERMINAL TEM- of the Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground,causing the motor to rotate so that Telescopic short operation occurs on auto and with Tilt up operation occurring simultaneously on auto, auto away operation occurs.

4. AUTO RETURN OPERATION
When the steering is in auto away condition and the Ignition key is inserted into the Ignition key cylinder (unlock warning SW ON), a signal is input to TERMINAL UWSW of the Tilt and Power Telescopic ECU.
As a result. the Tilt and Power Telescopic ECU operates and the current to TERMINAL +B of the Tilt and Power Telescopic ECU flows from TERMINAL TEM- of the Tilt and Power Telescopic ECU --> TERMINAL 8 of Tilt and Power Telescopic sensor and motor --> TERMINAL 1 of Telescopic control motor --> TERMINAL 2 --> TERMINAL 7 of Tilt and Power Telescopic sensor and motor --> TERMINAL TEM+ of the Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground, and at the same time, current flows from TERMINAL TIM- of the Tilt and Power Telescopic ECU --> TERMINAL 9 of Tilt control motor --> TERMINAL 3 --> TERMINAL TIM+of the Tilt and Power Telescopic ECU --> TERMINAL GND --> Ground, causing both the Tilt control motor and Telescopic control motor to rotate. The motors continue to rotate until the signals input from the Tilt position sensor to TERMINAL TIS of the Tilt and Power Telescopic ECU and from the Telescopic position sensor TERMINAL TES of the Tilt and Power Telescopic ECU (signals informing the ECU of the current position of the steering) match the position memorized by the ECU prior to auto away operation.
In this way, the steering position is automatically returned to the original position.
When the Ignition SW is turned from OFF to ON and the shift lever is shifted to a position other than O"P" auto operation is stopped.