Parallel Parking Assist Components
The parking assist system is made up of the following components:
- K182 Parking Assist Control Module
- B306 Parking Assist Sensors
- Parking Assist Switch
- Parking Assist Switch Indicator
- Parallel Parking Assist Switch
- Infotainment System
K182 Parking Assist Control Module
The K182 Parking Assist Control Module provides a reference voltage and a low reference to the B306 Parking Assist Sensors. The K182 Parking Assist Control Module receives individual signals from each of the four B306 Parking Assist Sensors and determines the location and distance of an object based on these inputs. When an object is detected, the K182 Parking Assist Control Module will send a serial data message to the infotainment system requesting an audible alert.
B306 Parking Assist Sensors
The B306 Parking Assist Sensors are located in the front and rear fascia of the vehicle. The sensors are used to determine the distance between an object and the bumper. Each sensor emits an ultrasonic frequency which is reflected off any object located behind the vehicle. These reflections are received by the sensors. The time difference between the emission of the frequency and when the reflection is received is known as sensor echo time; it is used to determine the distance to the object. The sensors report this information to the K182 Parking Assist Control Module.
Parking Assist Switch
The parking assist system can be activated and deactivated by pressing the parking assist switch. The K124 Active Safety Control Module applies voltage and monitors the parking assist switch signal circuit. The parking assist switch is a normally open switch. With the switch open, voltage seen at the K124 Active Safety Control Module is high. When the parking assist switch is pressed, the switch is closed and the signal circuit is pulled to ground. With the switch closed, voltage seen at the K124 Active Safety Control Module is low. The K124 Active Safety Control Module will respond to this by activating or deactivating the parking assist function.
Parking Assist Switch Indicator
When the parking assist system is enabled, the K124 Active Safety Control Module will illuminate the indicator on the switch. The indicator is controlled through a low control circuit by the K124 Active Safety Control Module.
Parallel Parking Assist Switch
The parallel parking assist system can be activated and deactivated by pressing the parallel parking assist switch. The K182 Parking Assist Control Module applies voltage and monitors the parallel parking assist switch signal circuit. The parallel parking assist switch is a normally open switch. With the switch open, voltage seen at the K182 Parking Assist Control Module is high. When the parallel parking assist switch is pressed, the switch is closed and the signal circuit is pulled to ground. With the switch closed, voltage seen at the K182 Parking Assist Control Module is low. The K182 Parking Assist Control Module will respond to this by activating or deactivating the parallel parking assist function.
Infotainment System
The infotainment system controls the audible alert for the parking assist system. If the an object is detected the infotainment system will command beeps as an audible alert to the driver.