What does the three locks of Haval H9 mean?
3 Answers
Haval H9's three locks refer to the front and rear differential locks and the central differential lock. The function of the differential lock is to lock the differential, ensuring that both wheels have driving force, thereby improving the vehicle's off-road performance. Generally, vehicles equipped with three locks are suitable for off-roading. Types of differential locks: 1. Forced locking type: The forced locking differential lock is set on an ordinary symmetrical bevel gear differential. This type of differential lock has a simple structure, is easy to manufacture, and has a high torque distribution ratio. 2. High-friction self-locking type: The high-friction self-locking type includes structures such as friction plate type and slider cam type. The friction plate type locks the differential through the friction torque generated when the friction plates slide relative to each other. This type of differential lock has a simple structure and stable operation, and is most common in cars and light vehicles. 3. Torsen type: The Torsen differential is a new type of inter-axle differential widely used in all-wheel-drive cars (such as the Audi TT). The name 'Torsen' is a registered trademark of the Gleason Company, representing 'Torque-Sensing Differential.' It uses the basic principle of worm gear transmission with self-locking characteristics. 4. Viscous coupling type: Some four-wheel-drive cars use a viscous coupling as a differential. This new type of differential uses silicone oil as the medium for transmitting torque. Silicone oil has a high thermal expansion coefficient. When the speed difference between the two axles is too large, the temperature of the silicone oil rises sharply, and its volume expands continuously, pushing the friction plates to tightly combine. At this point, the drive shafts at both ends of the viscous coupling are directly connected as one, meaning the viscous coupling is locked.
The three differential locks of the Haval H9 are a technical highlight, referring to its differential lock system: the front differential lock, central differential lock, and rear differential lock. The function of the differential lock is that when the vehicle is driving on low-friction surfaces such as mud, sand, or snowy slopes, if a wheel slips or spins, it can lock the differential, allowing all wheels to rotate together, providing stronger traction to help the vehicle escape easily. For example, the central lock is responsible for balancing power between the front and rear axles, while the front and rear locks individually control their respective axles. This system on the Haval H9 is typically electronically controlled, with the driver activating it via buttons—simple and reliable. During daily use, it should be engaged at low speeds to avoid damaging components on hard surfaces, enhancing off-road performance while ensuring driving safety. This configuration is a hallmark of hardcore off-road vehicles, making it ideal for outdoor adventure enthusiasts.
Off-road enthusiasts are well aware that the Haval H9's three differential locks are its core off-road weapons. Essentially, they are three differential locks that can instantly lock wheel speeds when wheels get stuck or on slippery surfaces, ensuring even power distribution. For example, when climbing a steep slope, engaging one lock concentrates power on the reliable wheels. I once drove on a gravel beach, and after engaging the central lock, I immediately felt the car stabilize. It's rarely used in daily city driving, but it's a big plus when climbing slopes in heavy rain. It's important to remind yourself not to engage the locks unnecessarily on flat roads, as it may damage the drivetrain. Before each off-road trip, check if the buttons are responsive, and regular maintenance can extend their lifespan, making every adventure more reassuring.
