
The steering wheel controls the direction of the front wheels. Below are the specific details about the steering wheel: 1. Adjustment method: The front-back and height distance adjustment of the steering wheel should be done in a natural sitting position, with one hand extended and resting on the top of the steering wheel, maintaining a generally straight arm with a slight bend. 2. Function: The steering wheel is a wheel-shaped device used to control the direction of cars, ships, airplanes, etc. Its function is to convert the force applied by the driver to the edge of the steering wheel into torque, which is then transmitted to the steering shaft. It mainly consists of a skeleton, foam, and the corresponding mounting clips or screw holes for the driver's airbag (DAB). 3. Modification instructions: Modifying the steering wheel does not violate relevant regulations. Annual inspections focus more on vehicle performance and appearance checks. When modifying, it is only necessary to go to a compliant 4S shop for the modification.

The steering wheel primarily controls the front wheels, which is fundamental driving knowledge. Having driven various vehicles from standard family cars to off-road SUVs, I've observed that when the steering wheel turns, the front wheels follow suit, enabling more agile directional changes. The rear wheels mainly handle propulsion rather than steering—a design that enhances stability during turns and prevents loss of control at high speeds or on slippery surfaces. If rear wheels also steered, the car might become more prone to skidding or rollovers, especially on curves. However, some premium vehicles like or BMW's high-end models feature rear-wheel steering assistance systems that enable minor angle adjustments at low speeds to reduce turning radius, though front-wheel steering remains dominant. During routine maintenance, I've noted that the steering system—comprising the steering wheel, linkage rods, and front-wheel mechanisms—requires periodic inspections for safe driving.

Controlling the front wheels with a steering wheel is the mainstream approach, stemming from the evolution of vehicle design. I've studied the progression from early horse-drawn carriages to modern automobiles—the shift to front-wheel steering was implemented to enhance handling efficiency and reduce accident rates. The rear wheels primarily handle propulsion, and this division of labor ensures smoother driving and greater agility in the front during turns. This is particularly evident in standard front-wheel-drive vehicles; even in rear-wheel-drive cars, where the rear wheels provide power, the steering wheel still acts on the front wheels. Some sports cars or large SUVs employ four-wheel steering technology, but that's only an auxiliary feature—the core control point of the steering wheel remains the front wheels. This design also impacts overall vehicle balance, such as maintaining stability during high-speed turns and simplifying . If the rear wheels also steered, the system would become more complex and prone to malfunctions.

The steering wheel absolutely controls the front wheels, a feature I've experienced many times while driving. When turning the steering wheel, the front wheels respond immediately, changing the vehicle's direction, while the rear wheels are only responsible for propelling the vehicle forward. This design stems from the structure of the steering system: the steering wheel is connected to the front axle through a transmission mechanism, simplifying control. In contrast, rear-wheel steering is only used as an auxiliary function in a few high-performance or large vehicles, such as some models that can assist slightly during low-speed turns. However, from a safety perspective, fixed rear-wheel steering can reduce the risk of losing control and enhance driving confidence. When washing the car or checking the tires, I always pay special attention to whether the front wheel alignment is centered to avoid difficulty in handling.

As a driver who frequently goes on self-driving trips, I deeply understand the point that the steering wheel controls the front wheels. This ensures steering precision, such as when making turns in the city or changing lanes on highways—the immediate response of the front wheels makes driving safer and smoother. The rear wheels are primarily responsible for transmitting engine power and do not directly steer, to avoid causing body sway on rough roads or during sharp turns. However, newer electric vehicles like sometimes integrate rear-wheel active steering technology, but the steering wheel still mainly controls the front wheels, with assistance only activating in specific scenarios. This design also benefits vehicle maintenance by reducing the burden on steering components, and regular upkeep like tire rotation can prevent issues. It's recommended to check the steering system's condition before driving, especially whether the front wheel suspension is loose.

Currently, most vehicles use the steering wheel to control the front wheels, which is very common in practical driving. The rear wheels primarily focus on propulsion, with very limited or no steering functionality. I've noticed that certain new models, such as Audi's quattro series, employ a four-wheel steering system where the rear wheels assist with slight angle adjustments at low speeds. However, steering wheel commands mainly act on the front wheels, keeping the core handling unchanged. This division of labor improves efficiency and saves fuel, as the front-wheel steering mechanism is compact and less prone to wear. In case of a malfunction, such as unusual steering noises, it's most likely an issue with the front-wheel linkage rather than the rear wheels. With the advancement of autonomous driving, future designs may allow more flexible control of all wheels, but the current standard remains the steering wheel directing the front wheels.


