I used SZD-2A portable braking performance tester of Zibo Shouke Electronic Technology Co., Ltd.,
The test model is a car.
The choice of test sites is very important. If there is fine sand or particles on the ground, it will slip when braking. The braking performance test shall be carried out on a flat, hard, clean and dry cement or asphalt pavement, and the adhesion coefficient between the tire and the ground shall not be less than 0.7. land
General? The sensor of SZD-2A braking performance tester is attached to the window glass with a sucker bracket. The red arrow points in the direction of the vehicle.
After adjusting the service life back and forth, tighten the fixing screws.
Install the brake pedal switch on the foot brake of the test vehicle.
Accelerate to the specified speed, generally 50km/h for cars and 30km/h for carts. Brake suddenly and step on it to the end to get the most real and effective data.