Automotive Wiki
Learn about vehicle components, mechanical principles, and advanced automotive technologies.
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...
Automotive Sunroof: Terminology Explained
An automotive sunroof is a device installed on the roof of a vehicle that effectively promotes air circulation inside the cabin, increases the intake of fresh air, and provides drivers with a healthier and more comfortable driving experience. Additionally, an automotive sunroof can offer a wider field of view, meeting the needs for mobile photography and videography. Automotive sunroofs are mainly divided into external sliding
Characteristics of Torque Converters
The performance of a torque converter can be evaluated by characteristic parameters or curves related to external load. Characteristic parameters describing a torque converter include speed ratio, pump impeller torque coefficient, torque ratio, efficiency, and stall torque ratio. The characteristic curves describing a torque converter mainly include external characteristic curves, original characteristic curves, and
Basic Introduction to Convertibles
A convertible, also known as a cabriolet, typically refers to a sports car with a retractable roof. Its body structure is generally a two-door, two-seater or two-door, four-seater. Depending on the roof material, convertibles can be divided into soft-top convertibles and hard-top convertibles.
Function of the Torque Converter
When shifting between adjacent gears, different operating procedures are required. Regardless of the gear shifting method, the rotational angular velocity of the gear ring to be engaged and the engaging sleeve, or the linear velocity at the meshing point of the gear to be engaged, must remain consistent. However, the underlying principles of speed analysis are similar.
Sunroof's Role in Ventilating Stale Air
Opening the sunroof utilizes the principle of negative pressure to draw out harmful substances from the car, eliminate interior odors, and prevent glass from fogging up, ensuring visibility and driving safety. When driving in winter and rainy weather, the sunroof can be tilted open to maintain interior temperature, promote air circulation, prevent temperature differences, and keep the glass clear.
Basic Introduction to Hardtop Convertibles
A hardtop convertible is a type of car with a metal roof that can automatically fold into the trunk. This type of vehicle has developed over the past decade and was first applied to models such as the SLK and CC. The advantages of hardtop convertibles include higher sealing and safety, as well as a more harmonious design. However, the drawbacks...
Definition of A-pillar
The A-pillar is the connecting pillar between the roof and the front compartment, located at the front left and front right of the vehicle. Generally, a car body has three pillars: the front pillar (A-pillar), the middle pillar (B-pillar), and the rear pillar (C-pillar), from front to back. In addition to providing support, these pillars also serve as door frames.
Sunroof Maintenance Tips for Durability
Beyond knowing how to use a sunroof, we also need to understand how to maintain it to ensure its durability. Here are some practical sunroof maintenance methods: 1. Pay attention to the condition of the sunroof rails. The user experience of an electric sunroof depends on the healthy condition of its rails, meaning they should be free of foreign objects, undeformed, and well-lubricated. Therefore,
A-pillar Design Characteristics
Comfort and safety are crucial considerations in automotive design. During driving, the driver's line of sight is obstructed by the A-pillar, which affects driver comfort. However, designers need to balance these two factors while ensuring high rigidity and safety of the A-pillar. Therefore, the size of the A-pillar
Basic Introduction to Soft-Top Convertibles
Soft-top convertibles typically feature a two-door, two-seat or two-door, four-seat design. The roof material can be canvas, vinyl, or plastic, equipped with a foldable frame. The roof can be operated manually or electrically. Representative models include various convertible versions. The advantages and disadvantages of soft-top convertibles are: advantages include being lightweight,
Basic Introduction to Station Wagons
In English, station wagons are commonly referred to as 'wagon', and can also be known as 'Avant', 'Touring', or 'Estate'. Most station wagons are based on sedans, with the sedan's trunk extended upwards to be level with the roofline, thereby increasing luggage space. The advantage of a station wagon is that it possesses both the comfort of a sedan and
A-pillar Concept Extension
The A-pillar, located between the engine compartment and the passenger cabin, and above the left and right rearview mirrors, can obstruct your turning visibility, especially when making a left turn, thus requiring special attention. The B-pillar, located between the front and rear seats of the passenger cabin, is a vertical support extending from the roof to the vehicle's floor; viewed from the inside, the seatbelt is attached to the B-pillar. The C-pillar is located behind the rear