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MG4 EV
The MG4 EV or MG4 Electric is a battery electric small family car (C-segment) produced by the Chinese automotive manufacturer SAIC Motor under the British MG marque. First released in June 2022 as the MG Mulan in China (later renamed to MG4 EV in August 2023), and it was later introduced in Europe in July 2022. In March 2025, MG Motor introduced a second model of the MG4 EV to be introduced in the Chinese market. It adopts a different design, has a larger footprint and based on a different platform. Outside China, the model will be sold alongside the existing MG4 EV model. __TOC__ First generation (EH32; 2022) The EH32 MG4 EV is the first vehicle to be based on SAIC's battery-electric Modular Scalable Platform (marketed as the Nebula platform in China). The MG4 EV was developed under the codename EH32. It was developed as a global model with the European market set as the primary target. The model was part of a collaboration between SAIC Motor Design Center in Shanghai, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SAIC Motor
SAIC Motor Corp., Ltd. (formerly Shanghai Automotive Industry Corporation) is a Chinese State-owned enterprises of China, state-owned automobile manufacturer headquartered in Anting, Shanghai. Founded in 1955, it is currently the largest of the "Automotive industry in China, Big Four" state-owned car manufacturers of China ahead of FAW Group, Dongfeng Motor Corporation, and Changan Automobile, with sales of 5.02 million vehicles in 2023. The company traces its origins to the early years of the Chinese automobile industry in the 1940s, and SAIC was one of the few carmakers in History of the People's Republic of China (1949–1976), Mao's China, making the Shanghai SH760. Currently, it participates in the oldest surviving sino-foreign automotive joint venture with Volkswagen (SAIC Volkswagen, SAIC-Volkswagen) since 1984, and in addition operates a joint venture with General Motors (SAIC-GM) since 1998. It also produces and sells passenger vehicles under its own branding, such as R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permanent Magnet Synchronous
A synchronous electric motor is an AC electric motor in which, at steady state, the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integer number of AC cycles. Synchronous motors use electromagnets as the stator of the motor which create a magnetic field that rotates in time with the oscillations of the current. The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field. Doubly fed synchronous motors use independently-excited multiphase AC electromagnets for both rotor and stator. Synchronous and induction motors are the most widely used AC motors. Synchronous motors rotate at a rate locked to the line frequency since they do not rely on induction to produce the rotor's magnetic field. Induction motors require ''slip'': the rotor must rotate at a frequency slightly slower than the AC ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brake Calipers
A disc brake is a type of brake that uses the calipers to squeeze pairs of pads against a disc (sometimes called a rakerotor) to create friction. There are two basic types of brake pad friction mechanisms: abrasive friction and adherent friction. This action slows the rotation of a shaft, such as a vehicle axle, either to reduce its rotational speed or to hold it stationary. The energy of motion is converted into heat, which must be dissipated to the environment. Hydraulically actuated disc brakes are the most commonly used mechanical device for slowing motor vehicles. The principles of a disc brake apply to almost any rotating shaft. The components include the disc, master cylinder, and caliper, which contain at least one cylinder and two brake pads on both sides of the rotating disc. Design The development of disc-type brakes began in England in the 1890s. In 1902, the Lanchester Motor Company designed brakes that looked and operated similarly to a modern disc-brake sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dual-motor, All-wheel-drive
In automotive design, dual-motor, four-wheel-drive layout is mainly used by battery electric vehicles by having two electric motors that each drives the front and rear axle, creating a four-wheel drive layout. This is made possible by the smaller size of electric motors compared to internal combustion engines (ICEs), which in addition are also accompanied by a bulky engine cooling system, allowing it to be fit more versatilely into multiple locations. The use of separate motors for the front and rear drive wheels eliminates the need of a drive shaft that is ubiquitous in four-wheel drive ICE vehicles, freeing up space for bigger battery modules, which are commonly mounted on the chassis floor between the axles. The dual-motor layout is beneficial in re-distributing torque and power to maximize effective propulsion in response to road grip conditions and weight transfer in the vehicle. For example, during hard acceleration, the front motor must reduce torque and power in order to p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centre Of Gravity
In physics, the center of mass of a distribution of mass in space (sometimes referred to as the barycenter or balance point) is the unique point at any given time where the weighted relative position of the distributed mass sums to zero. For a rigid body containing its center of mass, this is the point to which a force may be applied to cause a linear acceleration without an angular acceleration. Calculations in mechanics are often simplified when formulated with respect to the center of mass. It is a hypothetical point where the entire mass of an object may be assumed to be concentrated to visualise its motion. In other words, the center of mass is the particle equivalent of a given object for application of Newton's laws of motion. In the case of a single rigid body, the center of mass is fixed in relation to the body, and if the body has uniform density, it will be located at the centroid. The center of mass may be located outside the physical body, as is sometimes the cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weight Distribution
Weight distribution is the apportioning of weight within a vehicle, especially cars, airplanes, and trains. Typically, it is written in the form ''x''/''y'', where ''x'' is the percentage of weight in the front, and ''y'' is the percentage in the back. In a vehicle which relies on gravity in some way, weight distribution directly affects a variety of vehicle characteristics, including handling, acceleration, traction, and component life. For this reason weight distribution varies with the vehicle's intended usage. For example, a drag car maximizes traction at the rear axle while countering the reactionary pitch-up torque. It generates this counter-torque by placing a small amount of counterweight at a great distance forward of the rear axle. In the airline industry, load balancing is used to evenly distribute the weight of passengers, cargo, and fuel throughout an aircraft, so as to keep the aircraft's center of gravity close to its center of pressure to avoid losing pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hood (car)
The hood (American English) or bonnet (Commonwealth English) is the hinged cover over the engine of motor vehicles. Hoods can open to allow access to the engine compartment, or trunk (boot in Commonwealth English) on rear-engine and some mid-engine vehicles) for maintenance and repair. Terminology In British terminology, ''hood'' refers to a fabric cover over the passenger compartment of the car (known as the 'roof' or 'top' in the US). In many motor vehicles built in the 1930s and 1940s, the resemblance to an actual hood or bonnet is clear when open and viewed head-on. In modern vehicles it continues to serve the same purpose but no longer resembles a head covering. Styles and materials On front-engined cars, the hood may be hinged at either the front or the rear edge, or in earlier models (e.g. the Ford Model T) it may be split into two sections, one each side, each hinged along the centre line. Another variant combines the bonnet and wheelarches into one section whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhang (vehicles)
Overhangs are the lengths of a road vehicle which extend beyond the wheelbase at the front and rear. They are normally described as front overhang and rear overhang. Practicality, style, and performance are affected by the size and weight of overhangs. Background Along with Ride height, clearance, the length of overhangs determines the approach and departure angles, which determine the vehicle's ability to overcome steep obstacles and rough terrain. The longer the front overhang, the smaller is the approach angle, and thus the car's ability to climb or descend steep ramps without damaging the front bumper (automobile), bumpers is smaller. Typically, the rear overhang is larger on rear-wheel drive cars, while the front overhang is larger on front-wheel drive cars. For rolling stock, each overhang is the length from the bogie pivots to the end of the car, or in the case of two axles the distance outside of the wheelbase to the end of the car. Journalist Paul Niedermeyer has prop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal College Of Art
The Royal College of Art (RCA) is a public university, public research university in London, United Kingdom, with campuses in South Kensington, Battersea and White City, London, White City. It is the only entirely postgraduate art and design university in the United Kingdom. It offers postgraduate degrees in art and design to students from over 60 countries. History The RCA was founded in Somerset House in 1837 as the Government School of Design or Metropolitan School of Design. Richard Burchett became head of the school in 1852. In 1853 it was expanded and moved to Marlborough House, and then, in 1853 or 1857, to South Kensington, on the same site as the South Kensington Museum. It was renamed the Normal Training School of Art in 1857 and the National Art Training School in 1863. During the later 19th century it was primarily a teacher training college; pupils during this period included George Clausen, Christopher Dresser, Luke Fildes, Kate Greenaway and Gertrude Jekyll. In S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Direct Current
Direct current (DC) is one-directional electric current, flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor (material), conductor such as a wire, but can also flow through semiconductors, electrical insulation, insulators, or even through a vacuum as in electron beam, electron or ion beams. The electric current flows in a constant direction, distinguishing it from alternating current (AC). A archaism, term formerly used for this type of current was galvanic current. The abbreviations ''AC'' and ''DC'' are often used to mean simply ''alternating'' and ''direct'', as when they modify ''Electric current, current'' or ''voltage''. Direct current may be converted from an alternating current supply by use of a rectifier, which contains Electronics, electronic elements (usually) or electromechanical elements (historically) that allow current to flow only in one direction. Direct current may be converted into alt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Worldwide Harmonised Light Vehicles Test Procedure
The Worldwide Harmonised Light vehicles Test Procedure (WLTP) is a global driving cycle standard for determining the levels of pollutants, carbon dioxide, CO2 emission standards and fuel efficiency, fuel consumption of conventional internal combustion engine (ICE) and hybrid vehicle, hybrid automobiles, as well as the all-electric range of plug-in electric vehicles. The WLTP was adopted by the United Nations Economic Commission for Europe#Inland Transport Committee, Inland Transport Committee of the United Nations Economic Commission for Europe (UNECE) as Addenda No. 15 to the Global Registry (Global Technical Regulations) defined by the World Forum for Harmonization of Vehicle Regulations#1998 Agreement, 1998 Agreement. The standard is accepted by China, Japan, the United States and the European Union, among others. It aims to replace the previous and regional New European Driving Cycle (NEDC) as the new European motor vehicle type approval, vehicle homologation procedure. Its fin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
