How to diagnose faults in the braking system of new energy vehicles？
New energy vehicle braking system fault diagnosis mainly includes the following methods:
Sensor detection: New energy vehicle braking systems are equipped with multiple sensors, such as brake fluid level sensors, brake pressure sensors and wheel speed sensors. When the braking system fails, these sensors produce abnormal signals. By reading data from these sensors, the location of the fault can be determined.
Fault code diagnosis: The braking system of modern cars usually has a fault code storage function. By connecting to the vehicle diagnostic interface and using special tools to read and analyze fault codes, you can understand the cause of the fault. Different fault codes represent different types of faults, and maintenance and adjustments should be made accordingly.
Dynamic test: Conduct a braking test during actual driving to observe parameters such as brake pedal response time, braking force, and changes in braking distance. If anomalies are found, it may indicate a malfunction.
Sound and Vibration Detection: Braking system malfunctions can sometimes manifest themselves as specific sounds and vibrations, such as a squealing noise or pedal vibration, which may be caused by worn brake discs or loose components.
Line inspection: Braking system failures are sometimes caused by wiring problems. If the brake light does not light up, it may be that the wiring connection is loose or damaged. Making sure the wiring is well connected is a necessary check.
Comprehensive analysis: Braking system failures are usually the result of a combination of factors. Comprehensive use of the above diagnostic methods, combined with empirical judgment, can comprehensively analyze the cause of the fault and ensure accurate diagnosis.
Common causes of failure include:
Severely worn brake pads will lead to problems such as longer braking distance, softer brakes, and increased noise. It is recommended to replace brake pads regularly.
Brake fluid level is too low: Brake fluid plays a key role in the braking system, and its lack will lead to insufficient braking power or even loss of braking power. Timely replenishing brake fluid can solve this problem.
Other situations: For example, oil leakage in the brake system, false alarms, etc. may also cause the fault light to light up. When you find that the fault light is on, you should slow down and investigate the cause of the fault as soon as possible.
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