What do the approach angle and departure angle of a car mean?
2 Answers
The approach angle and departure angle of a car are important geometric parameters that reflect the vehicle's passability through the size of the angles. Below is a partial introduction regarding the first maintenance of a car: Key items: The main items for the first maintenance of a new car are changing the engine oil and oil filter. Reason: Since the period before the first maintenance is the running-in period of the vehicle, the gradually running-in engine will continuously mix mechanical impurities such as dust, metal wear, and carbon deposits into the engine oil during operation. Driving at high speeds can lead to abnormal engine wear. If the debris and impurities generated by the engine operation are not removed in time, they may cause abnormal damage to the internal parts of the cylinder.
I've been driving for many years and have studied various car parameters. The approach angle and departure angle are actually quite easy to understand. Simply put, the approach angle is the angle between the line connecting the lowest point at the front of the car to the center of the front wheel and the ground when the car heads down a slope. The departure angle is the angle between the line connecting the lowest point at the rear of the car to the center of the rear wheel and the ground when the car exits an upward slope. These angles determine whether the car will scrape its undercarriage components when navigating steep slopes or rough terrain. For example, if the approach angle is too small, the front of the car will hit the ground when heading down a slope; if the departure angle is too small, the rear will get damaged when exiting an upward slope. This isn't just important for off-road vehicles—I once scraped the bumper of my sedan when entering a steep parking lot, costing me hundreds to repair. Paying attention to this parameter when choosing a car can help avoid such troubles, especially for those who often drive on rough roads. Some SUV manufacturers design larger angles to improve off-road capability, but drivers should still be careful with speed to avoid damaging the vehicle.
