What does DTV mean on a car?
1 Answers
DTV refers to Disc Thickness Variation, a parameter that significantly impacts braking performance. Excessive DTV can cause brake judder, increased noise, and affect pedal feel. Generally, new cars leave the factory with acceptable DTV levels, but DTV tends to gradually increase with use. Below are some related details: 1. Introduction: The brake disc is the friction component of a disc brake system. In addition to requiring the necessary strength and stiffness as a structural element, it should also have as high and stable a friction coefficient as possible, along with appropriate wear resistance, heat resistance, heat dissipation, and heat capacity. 2. Advantages: Typically, there is no friction boosting effect, so the braking performance is less affected by the friction factor, meaning the performance is more stable; performance reduction due to water ingress is minimal, and normal performance can be restored with just one or two brake applications; for the same braking torque output, the size and weight are smaller compared to drum brakes.