Jingcheng Engineering Automotive Systems Co., Ltd

1、 Enterprise Overview Jingcheng Engineering Automotive Systems Co., Ltd. (referred to as Jinggong Automotive EA) is headquartered in Baoding City, Hebei Province, with a registered capital of 1 billion RMB. The company has more than 11000 employees, including more than 1600 technical personnel and more than 530 intermediate and senior technical personnel. The annual output value is 13.5 billion yuan, divided into three major sectors and eight major businesses based on process characteristics. It has one research institute and 18 manufacturing factories, distributed in five provinces and cities including Hebei, Tianjin, Jiangsu, Shandong, and Chongqing. The process involves cold stamping, hydraulic forming, welding, electrophoresis, machining, module assembly, aluminum alloy casting, mold casting, hot forming, rolling, mold design and manufacturing, automation equipment design integration, resource recycling and reuse, etc. The product involves chassis systems, body systems, power systems, transmission systems and other related components, as well as automated production equipment. Among them, there are over 800 professional R&D personnel from the Seiko Chassis Research Institute, with independent design, trial production, verification, and production capabilities for five major systems: chassis suspension system, transmission system, braking system, exhaust system, and fuel system. They have also achieved product platform based design and development, and are committed to providing customers with market competitive products and making unremitting efforts. 2、 Proposed to introduce project technical requirements Technical project 1: Air suspension Active suspension is a system device (sensor, electronic control unit ECU, actuator, etc.) that adds controllable force to passive suspension (elastic components, shock absorbers, guidance devices). The electronic control unit ECU outputs control signals based on the input signals of sensors (such as body acceleration sensor, body height sensor, throttle position sensor, etc.), after calculation and analysis, to control the actions of various actuators (such as air pumps in air suspension, solenoid valves in shock absorbers, etc.), adjust suspension stiffness, damping of shock absorbers, and body height in a timely manner, and improve the passability, handling stability, and comfort of the entire vehicle. Technical project 2EMB is the development direction of future brakes. Energy is transmitted through electrical signals, and ECU identifies various sensor signals (pressure, wheel speed, stroke, etc.). Through software analysis and adjustment of current, the braking force of each wheel is controlled to achieve various strategies such as vehicle braking, vehicle stability, ABS, electronic parking, etc. The brake pedal feel can be adjusted according to customer preferences (sports, standards, comfort) without hydraulic pressure, making it more environmentally friendly, Improve customer satisfaction. Technical project 31-BOX is a highly integrated product of iBooster and ESP, which is a mechanism that utilizes servo motors to provide brake assistance based on driver intentions or ECU commands. It covers all the functions of iBooster and ESP products, with characteristics such as fast response, light weight, and easier vehicle layout. It can also be used in ADAS systems, plays an important role in ACC and AEB, and is an important component of L3 level and above autonomous driving. It can also be combined with the drive motor of new energy vehicles to achieve brake energy recovery, increasing the vehicle's range by 20% -30%.