What is the difference in range between 72v20Ah and 60v20Ah?

What does the automotive ACM module mean?

Automotive ACM module, the full English name is Auxiliary-Control-Module, which means auxiliary control module in Chinese. Definition of ACM module: The ACM (Active Control Mount) system needs to be connected to the engine's intake manifold through an electromagnetic control valve (ECM), which controls it. Function of ACM module: Under different conditions, the ACM (Active Control Mount) system provides corresponding forces to counteract the engine's impact inertia, effectively absorbing engine vibrations and the engine shake during idle start-stop functions, achieving more stable driving control and ride comfort.

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What tires are best for the Changan CS75?

Yokohama tires are the tires used for the Changan CS75, with the specification being 225/65R17. Yokohama has developed tire design technology that reduces air resistance during vehicle operation. This technology, as a new eco-friendly method to decrease tire rolling resistance, improves the airflow around the tires during driving, thereby achieving fuel-saving and environmental benefits. Yokohama Tires, founded in 1917 and formerly known as Yokohama Rubber, officially changed its name in China to Yokohama in 2008. It has developed tire design technology that reduces air resistance during vehicle operation. When using Yokohama tires in daily life, the following points should be noted: Regularly inspect the tire surface for cracks, deformations, or other defects. Due to wear from driving, the tread grooves gradually become shallow. If the tread wears out completely, the tire will lose its drainage and anti-skid functions, significantly reducing the vehicle's performance. Small cracks may also pose a risk of tire blowouts at high speeds. Additionally, promptly remove pebbles lodged in the grooves. Try to park on level ground. Avoid parking on roads with thick, sharp, or pointed stones. Do not park near or in contact with petroleum products, acids, or other materials that may deteriorate rubber. After parking, the driver should not turn the steering wheel, as this action accelerates tire wear. Do not splash water to cool the tires. In hot weather or during high-speed driving, tires are prone to overheating, and the air pressure may increase. In such cases, park to allow the tires to cool naturally. Avoid releasing air to reduce pressure or splashing water to cool the tires, as this can lead to abnormal aging of the tread rubber. Avoid sudden braking. Try to minimize frequent or hard braking to prevent accelerated tread wear caused by dragging between the tires and the ground.

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What is the assist button in a car?

The assist button in a car refers to the auxiliary brake. When 'assist-plus' appears on the car dashboard, it indicates a system assisting during parking. Definition of auxiliary brake: An auxiliary brake is a safety assist device used when parking or reversing a car. Currently, the mainstream system consists of a reversing camera and an in-car display forming the parking assist system. Function of auxiliary brake: When reversing, the front display can show real-time video from the rear reversing camera, making reversing safer. The system is composed of ultrasonic sensors (commonly known as probes), a controller, and a display (or buzzer).

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What does a 7-speed wet dual-clutch transmission mean in cars?

Automotive 7-speed wet dual-clutch refers to a dual-clutch transmission with 7 forward gears, utilizing wet-type clutches. Definition of Dual-Clutch: Dual-clutch, namely Dual-Clutch Transmission (DCT), differs from conventional automatic transmission systems. It belongs to both manual and automatic transmissions, combining the flexibility of manual transmissions with the comfort of automatic transmissions while providing uninterrupted power output. Working Principle of Dual-Clutch: The dual-clutch automatic transmission is based on the manual transmission. Simply put, this transmission type has two clutches: one controls gears 1, 3, 5, and 7, while the other controls gears 2, 4, and 6. When using first gear, second gear is already prepared, similarly reducing shift time significantly with no delay.

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What are the hazards of running a car engine at 4000 RPM?

The hazard of running a car engine at 4000 RPM is significantly shortening the engine's lifespan. Pros and cons of running at 4000 RPM: When accelerating to overtake, temporarily increasing the RPM to 4000 to obtain maximum torque won't damage the engine. In fact, it can help remove carbon deposits from the engine to some extent, which benefits the engine. However, if the engine is frequently kept at around 4000 RPM, its lifespan will be substantially reduced. Conditions for 4000 RPM not harming the engine: Since 4000 RPM is generally around the peak torque or maximum power RPM range, there's a prerequisite for high RPM operation not damaging the engine - the coolant temperature gauge must reach about 90°C. Immediately revving the engine to 4000 RPM after startup is most harmful to the engine.

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What does CNG mean in cars?

CNG printed on a car indicates that the vehicle uses compressed natural gas as its fuel. Definition of CNG: CNG, or Compressed Natural Gas (abbreviated as CNG), is natural gas that has been pressurized and stored in a gaseous state within containers. The composition of CNG is the same as pipeline natural gas, with methane being the primary component. Advantages of CNG: CNG is an ideal alternative energy source for vehicles, with application technology that has become increasingly mature over decades of development. It features low cost, high efficiency, no pollution, and safe and convenient usage.

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