What does it feel like when the car's ABS intervenes?
1 Answers
When the ABS intervenes during braking, there will be a rattling sound and a sense of jerkiness. Here are some related details about ABS: 1. Function: The Anti-lock Braking System (ABS) automatically controls the braking force during car braking to prevent the wheels from locking up, keeping them in a state of rolling and sliding (with a slip ratio of about 20%) to ensure maximum adhesion between the wheels and the road. 2. Working Principle: During braking, ABS quickly determines the locking state of each wheel based on the speed signals from the wheel speed sensors. It closes the normally open input solenoid valve for the wheel that is starting to lock, maintaining the braking force. If the wheel continues to lock, it opens the normally closed output solenoid valve, causing the braking pressure on that wheel to drop rapidly due to the direct connection to the brake fluid reservoir, preventing the wheel from completely locking up due to excessive braking force.