ACCELERATOR PEDAL POSITION (APP) SENSOR CONSTRUCTION/OPERATION


BHE014041600T02

• The sensor is installed on the AP and detects how much the AP is depressed.

1
APP sensor
2
Accelerator pedal

• The Hall element design has been adopted on the sensor.

• A non contact type sensor has been adopted to improve durability.

• The APP sensor is composed of the main sensor and sub sensor, and detects the accelerator opening angle with these two sensors (main and sub).

• Even if a malfunction occurs in either one of the sensors, the detection is performed with a normal sensor drive-by-wire control is maintained.

• If both the MAIN and SUB sensors for the APP sensor malfunction, signals necessary for the drive-by-wire control are not input to the PCM and the drive-by-wire control is disabled.

• However, even though the drive-by-wire control is disabled, the throttle valve opening angle necessary for minimum driving is maintained mechanically.

1
APP sensor
2
Hall element sensor
3
magnet
4
PCM
5
Main
6
CPU
7
Sub
8
High
9
Output voltage
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Low
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Small
12
Accelerator pedal depression amount
13
Large
14
Main sensor
15
Sub sensor