What are the power steering devices?

[OLyla]

Power steering devices mainly include the power steering gear, power steering sensor, one-way valve, vehicle speed sensor, steering control light, vehicle speed sensor, engine sensor, oil reservoir, pressure limiting valve, electric hydraulic pump, and power steering ECU. Below is a detailed introduction to power steering devices: Definition: Power steering assists the driver in adjusting the direction of the car, reducing the effort required to turn the steering wheel. Of course, power steering also plays a role in the safety and economy of car driving. Classification: The power steering systems configured in cars can be roughly divided into three categories: mechanical hydraulic power steering systems, electro-hydraulic power steering systems, and electric power steering systems.

[DeDaniel]

There are mainly three types of power steering systems: hydraulic power steering, which uses an oil pump and piping system to assist steering and is suitable for older models; electric power steering, which directly applies motor force to the steering column, making it lightweight and fuel-efficient; and electro-hydraulic power steering, which combines hydraulic and electronic control to balance responsiveness and efficiency. I think understanding these is important because hydraulic systems require regular oil changes, are prone to leaks, and can be more troublesome to maintain, but they are durable; electric systems have a simple structure and require less maintenance, making them widely used in modern cars; electro-hydraulic systems offer a balanced optimization. Regardless of the type, the core goal is to make driving easier, especially in urban congestion or during low-speed turns, as the steering feel can significantly impact the driving experience. I always recommend friends check the power steering type when buying a used car to avoid purchasing a problematic vehicle that could pose safety risks.

[ColinRose]

In daily driving, the power steering system makes turning the steering wheel effortless. The common hydraulic power steering is an older system that operates through oil pressure, offering a slightly heavier but stable feel. Electric power steering uses a compact motor for assistance, making the steering wheel ultra-light, fuel-efficient, and quiet, as seen in most compact cars. Electro-hydraulic power steering is a hybrid, combining quick response with reliability. In practice, hydraulic systems are prone to strange noises or oil leaks, requiring regular maintenance. Electric systems need less upkeep but may fail if malfunctioning. When choosing a car, I pay attention to this—older hydraulic cars can be strenuous, while newer electric ones, though better, are pricier. Power steering is directly linked to driving safety, especially when turning in the rain or during emergencies, where there's no room for error.

[SanElisa]

Speaking of the evolution of power steering systems, it's truly nostalgic. The earliest was purely mechanical, relying solely on human strength for steering with no assistance. Later came the development of hydraulic power steering systems, where the engine drove an oil pump to assist—common in cars from the 80s and 90s. Then it evolved into electric power steering systems, which intelligently provide assistance via batteries and motors, becoming popular in the last decade. Electro-hydraulic hybrid systems have also emerged. Technological advancements have transformed driving from a physically demanding task to a comfortable experience. However, I remember older cars with hydraulic systems frequently leaked oil and required more maintenance, while modern cars with electric power steering automatically adapt to speed—light and nimble when parking, firm and stable at high speeds. Behind each system lies years of refinement by automotive engineers, deserving our respect.