What should I do if there is friction sound in the disc brake of electric vehicle?

What should I do if there is friction sound in the disc brake of electric vehicle?

The disc brake of electric vehicle has rubbing sound, which can be solved by the following methods:

Check the brake pads: The brake pads of disc brakes may have worn to the limit and need to be replaced. If the brake pad is too thin or the material is not good, it will reduce the braking effect and cause friction sound.

Check the disc brake pump: There may be problems with the disc brake pump, such as oil leakage and piston check. , which will lead to the reduction of braking effect and friction sound. If the disc brake pump fails, it needs to be replaced.

Adjust the return torsion spring: If there is no problem in the above inspection, try to adjust the return torsion spring under the brake pad. If the return torsion spring is too tight or the position is incorrect, the brake pad will not return normally, resulting in friction sound. Proper adjustment can make the torsion spring looser and reduce friction.

Grease: After adjusting the return torsion spring, some grease can be rubbed on the contact surface between the brake pad and the cage, which can reduce the rubbing sound. But be careful not to apply too much, so as not to affect the braking effect.

Use of booster oil: If the newly bought electric car has friction noise during riding, it may be because the disc brake is short of booster oil during the whole riding. You can try to add some accelerant oil properly, but not too much.