What is the Difference Between Auto Start-Stop and Autohold?
2 Answers
Auto start-stop and autohold differ in their functions and purposes. Here is an introduction to the differences between auto start-stop and autohold: 1. Different functions: Auto start-stop is a system that controls the engine's start and stop, while autohold is an automatic parking function that automatically applies the handbrake. 2. Different purposes: Auto start-stop: When the driver presses the brake pedal to stop the vehicle, the engine temporarily shuts off. Then, when the driver releases the brake pedal, the engine starts again. Its primary purpose is to save fuel. Autohold: After the vehicle stops by pressing the brake, it actively holds the brake for the driver, eliminating the need for the driver to keep their foot on the brake pedal. To start the vehicle again, the driver only needs to lightly press the accelerator pedal. However, this operation can be challenging for many new drivers, as they might sometimes press the accelerator too hard during startup, leading to a rear-end collision.
I've been driving for over a decade, and there's a significant difference between auto start-stop and auto hold. Auto start-stop is primarily designed for fuel economy and cost savings—it automatically shuts off the engine when you stop and restarts it when you release the brake or press the accelerator, which can significantly reduce fuel consumption in city traffic jams. Auto hold, on the other hand, is for safety and convenience, automatically applying the brakes when you come to a stop to prevent rolling or sliding, so your foot doesn't have to stay on the brake pedal. In terms of usage, auto start-stop is common in vehicles with strong fuel-saving requirements and may cause a slight vibration upon restarting. Auto hold is often used on slopes or during long red lights, providing great assistance to new drivers. From my experience, I use auto start-stop more often on flat roads to save fuel, while I engage auto hold on mountainous roads for safety. Don't confuse them—some people mistakenly think auto start-stop can also hold the car in place, leading to dangerous situations where the car rolls away.
