发布时间 : 星期日 文章汽车转向系统的历史外文文献翻译、中英文翻译、外文翻译更新完毕开始阅读baf85a59f4335a8102d276a20029bd64793e6247
virtual according to test data of integrated, formed \in the form of micro controller. So it is with speed, turning to the size of the torque rate and some corresponding relation.
Steering Angle sensor and actuator including steering motors, steering motor controller etc. It is the function of micro controller based on the control command, drive motor rotation Angle to execute, complete to action. Also the size of the rotation Angle sensor monitoring and feedback to micro controller, forming a complete accurate closed-loop control system, steering movement.
Micro controller is the core of electronic steering system. It is receiving signal detection, processed send corresponding control signal.
Due to the micro controller replaced steering transmission mechanism, thus mechanical connection between components of the system, reduce the response speed and the accuracy of the response. And to turn strategy, transmission control software programming any Settings, And other equipment, such as ABS, automatic navigation equipment. Transmission mechanism of reducing brings a bigger car interior space, give rides more fun. And turning behavior can be recorded, save in software that can help EEPROM after further perfecting the steering control strategy, even can provide evidence for the traffic accident.
Auto safety question has been the focus of public attention. Steering system and lighting system can give at night traffic better security. Page shown above, the traditional lighting system is the vehicle to the front line irradiation, vehicles and pedestrians in corners if drivers will be hard to find in the corner, pedestrians traffic accidents. If the lighting system combined with the steering system, pictured above, when drivers in the steering wheel to the right of the steering wheel Angle, light with the right to change, the more wide illumination turn, lighting, so in a broader range of pedestrian road corner will easily be found. Currently the lighting technology has in the midrange Citroen triumph, Toyota camrys are used.
At present, electronic steering system reliability and the cost is obstructed the development. If the micro controller is mainly manifested in the problem, steering system will complete failure, its not like electric power steering system and electric hydraulic steering system, in the motor or hydraulic system, also can appear when problems with human to control cars.
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The micro-controller electronic steering system malfunction, because no mechanical systems can be connected to the steering wheel and steering, therefore impossible to control of the car. But despite the electronic steering system is still the future development direction of steering system.
Auto 1.1 high-speed need,From the manipulation of light, the stability and security of Angle, automobile manufacturing widely used more advanced technology, using high rigidity, steering gear ratios steering. \and high rigidity is currently the world production of steering structure.
Fully considering safety, 1.2 portability,Auto speed increase, with the driver and passenger's safety is very important in many cars at home and abroad, has generally add energy absorption devices, such as safety steering belt prevent collisions, etc, the airbag, and gradually popularized. From the point of view of human engineering, manipulation of light has gradually adopts adjustable steering column and power steering system.
130 low cost, low fuel consumption, specialized production quantities,With the international economic situation, oil crisis recession, auto production seriously more and more economical, therefore, to design the low cost, low fuel consumption, low cost, auto production line, realizing mass rationalization of specialized production. To spare parts manufacturing, especially the steering gear production, more outstanding.
The computerized 1.4 automobile redirector device,The steering gear device, car on the way to the development of computers.2 the modern automobile steering device development trend.The modern automobile steering device 2.1 using dynamic
Along with the rapid development of the automotive industry, steering device structure has great changes. Automobile redirector structure from the prevalence of currently used, the main products are: there are four types of worm shaw (reference), worm wheel (WR type), circulation ball type (BS type) and rack-and-pinion (RP). These four redirector, has been widely used in the bus.
As we have learned, in the world scope, auto cycle ball type redirector 45%, rack-and-pinion steering wheel around 40%, worm around 10% of steering gear, other types of steering 5%. Ball type redirector cycle has been steady development. In Western Europe in
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the passenger, rack-and-pinion steering have very big development. Japan is characteristic of automobile redirector circular ball type redirector proportion is more and more big, the Japanese equipment of different types of each type of automobile engine, using different type redirector, used in the bus cycle of ball type redirector, already from the 1960s, the development of modern 62.5% 100% (worm wheel steering gear-component on the bus has been eliminated. Large and small trucks are mostly using circular ball type redirector rack-and-pinion steering gear, but also the development. Mini vans with circular ball type redirector 65%, rack-and-pinion 35%.
The comprehensive use of varieties of products, the following conclusions:
Ball type redirector. Circulation rack-and pinion steering gear-component with, has become the world's two major automobile redirector, And worm # 0; Worm and worm type redirector shaw, steering gear-component is eliminated or retain smaller status.
In view of the development of steering gear passenger is different, the United States and Japan focus on developing circular ball type redirector, ratio have reached or more than 90%, Western development is key rack-and pinion steering gear-component ratio, more than 50%, France has 95%.
Rack-and pinion steering gear-component with the advantages of small car in the application (including passenger and freight station wagon or small) development by leaps and bounds, And large vehicles to cycle for the main structure of the ball type redirector. The ball type redirector. Circulation characteristics are: high efficiency, manipulation of light, a smooth control force characteristic curve.
Decorate convenient..... Especially suitable for large and medium-sized vehicles and power steering system with, Easy to transfer the signal, High efficiency, return good thrust hydraulic booster device, and the actions as well.
To realize the ratios, satisfy the requirements of manipulating portability. Intermediate position to force is small, and often used to sensitive, therefore, request to intermediate position near the small, in order to improve the sensitivity ratio. Large Angle to position, but use to resistance, so fewer to large Angle position, speed to reduce to force. Due to the circulation ball type redirector can realize ratios, increasingly wide application.
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Through a lot of steel rolling, contact to deliver to force, has the strength and good wear resistance. And the steering gear can be designed with etc, it is the mechanical structure is one of the reasons for its wide application.
Variable structure has higher than, the stiffness, especially suitable for high speed of vehicles. High-speed vehicles in high-speed need a better stability, must ensure to high stiffness steering.
J gap is adjustable. Rack tooth fan can readjust vice wear after the clearance, make have appropriate steering gear transmission gap, so as to improve the life, but also the steering gear steering the advantages.
The steering gear production in China, in addition to the early worm XieFangPai automobile production; # 0, Wheel steering gear-component with worm shaw, dongfeng automobile steering gear-component, other most models using circular ball type structure, and has certain production experience. Currently, dongfeng in active development cycle, and has the ball type redirector in second HuanXing widely used on the ball type redirector. Thus, our products to mass production cycle is in the ball type redirector development. 230 redirector specialized production
Cycle in foreign ball type redirector realized the specialized production, and to train and test and research to greatly improve the quality and yield of products. In Japanese seiko \company in circular ball type redirector of low cost and good quality, yield, the Japanese market, and gradually to the sales of its products. German ZF company also as a large steering gear train. It from 1948 to start production of various type redirector, ZF steering 200 million. Some larger steering gear manufacturer, as the United States SAGINAW branch company, Delphi British BURM# 0, AN company is the professional manufacturer, has large production and sales. Specialization has become a trend, only walk this path, to make high quality products, production, low cost, in the market competitive. 2.4 power steering is the direction of development
Power steering system applied widely, not only in the heavy bus must equip, applied in the limousine car, medium or more in the application and popularization. Gradually, Mainly from reduce pilot fatigue, improve the manipulation of light and stability. Although bring higher
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cost and structure is complex issues, but due to the obvious advantages, or get fast development.
Power steering are three forms: integral, half nged and united valve type power steering structure. Now three forms, rapid development, the integral front axle load 3 ~ used car, 8t front axle load of valves used in 5 # 0; 18t cars, more than half of front axle load division for the author to car.
From the development trend, abroad is developing fast, but integral steering gear integral redirector interim valve structure is the direction of development.
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