Where is the ABS sensor located?
1 Answers
ABS sensor is located on the inner side of the car tire at the caliper position. It can be clearly seen after lifting the vehicle and removing the tire. There are three types of ABS sensors in total: linear wheel speed sensor, ring wheel speed sensor, and Hall-type wheel speed sensor. ABS working principle: During braking, ABS quickly determines the wheel lock state based on the speed signals from each wheel speed sensor, closes the normally open input solenoid valve on the wheel that begins to lock, and keeps the braking force unchanged. If the wheel continues to lock, the normally closed output solenoid valve is opened, and the braking pressure on this wheel rapidly decreases due to the direct connection to the brake fluid reservoir pipeline, preventing the wheel from completely locking due to excessive braking force. This keeps the braking state always at the optimal point (slip rate S of 20%), achieving the best braking effect and the safest driving. ABS function: It can fully utilize the efficiency of the brake, shorten braking time and distance; effectively prevent vehicle sideslip and fishtailing during emergency braking, ensuring good driving stability; allow steering during emergency braking, ensuring good steering maneuverability; avoid severe friction between the tire and the ground, reducing tire wear.
