Automotive Wiki
Learn about vehicle components, mechanical principles, and advanced automotive technologies.
Basic Characteristics of Double Wishbone Suspension
Double wishbone suspension is similar to other double wishbone designs, both featuring high lateral rigidity and typically using unequal-length control arms. However, some double wishbone suspensions have upper and lower arms that do not provide longitudinal guidance, requiring additional tie rods for guidance. This type of double wishbone suspension, simpler in structure than some double wishbone designs, offers performance...
Structure of MacPherson Strut Suspension
MacPherson strut suspension consists of a coil spring, shock absorber, and A-shaped lower control arm. Some models also include a stabilizer bar. The physical structure of this independent suspension is such that the strut shock absorber also functions as the kingpin, capable of withstanding body vibrations and impacts from the ground, while the steering knuckle rotates along the kingpin. Additionally, the kingpin can
Advantages and Disadvantages of MacPherson Strut Suspension
The MacPherson strut suspension system offers excellent responsiveness and handling, is simple in structure, occupies minimal space, is low-cost, lightweight, and suitable for accommodating large engines and fitting into small vehicle bodies. Other advantages Additionally, other advantages of the MacPherson strut suspension include: a. Due to a larger effective distance C, the forces acting on...
Camber Angle Definition
Camber angle refers to the angle between the tire's centerline and the vertical line when viewed from the front of the vehicle. Its positive or negative value affects the tire's contact patch and force application point with the ground, which in turn influences tire grip and wear. It also alters the distribution of vehicle weight on the axle, reducing abnormal bearing wear. Furthermore, the presence of camber angle can...
How Shock Absorbers Work
In a vehicle's suspension system, to improve ride comfort, shock absorbers are typically installed in parallel to dampen vibrations. Hydraulic shock absorbers are a common type, and their working principle is that when the chassis or body moves relative to the axle, the piston inside the shock absorber moves up and down, and the fluid repeatedly moves within the shock absorber chamber.
Types of Shock Absorbers
Categorized by material and structure, shock absorbers primarily come in three types: hydraulic, gas-filled, and variable damping. Hydraulic shock absorbers are widely used in automotive suspension systems. Their working principle involves the reciprocating motion of fluid within the cylinder, generating damping force through friction and internal friction. Gas-filled shock absorbers are a new type of
Basic Introduction to Telescopic Shock Absorbers
This type of shock absorber is widely used in automotive suspension systems and provides damping during both compression and rebound strokes, hence it is also known as a double-acting shock absorber. Its components include: piston rod, working cylinder, piston, rebound valve, reservoir tube, compression valve, compensation valve, flow valve, rod guide, dust cover, and oil seal.
Definition of Trailing Arm
Trailing-Arm, also known as a trailing arm type, is a suspension system specifically designed for the rear wheels. This system integrates the control arm with a pivot point on the vehicle body located in front of the axle, and with the axle itself. The rotational axis of this body pivot is perpendicular to the vehicle's centerline and extends rearward, forming a trailing arm or full trailing arm suspension.
Explanation of Variable Valve Terminology
Automotive engine valve timing mechanisms and technology, also known as Continuous Variable Valve Timing (CVVT) systems, are widely adopted technologies in today's high-performance engines. Equipped with control and actuation systems, this system can adjust the engine cam phase or valve lift to optimize the engine's gas distribution process.
Principle of Variable Valves
To improve engine economy and power performance, valve timing has different effects at high and low RPMs: At high RPMs, intake inertia can be utilized to increase intake volume and scavenging efficiency, thus early valve opening and late closing is a common technique. However, at low RPMs, valve timing needs to be adjusted...