With the continuous development of society, the car in People's Daily life has become a very common means of transportation, and automotive steering system performance largely determines the lightweight comfort and safety of vehicle handling stability are the important factors of comfort. In recent years, the theory and application of linear motor has been rapid development, its application fields are also growing, now according to the operation principle to discuss the corresponding mechanism of automobile redirector analysis of linear motor in the field of automotive steering applications. One, namely on the steering wheel control requirements of portable flexible and stable operation experience as a result of the steering wheel tire and ground friction damping increases with the speed reducing. That in automobile steering at low speed, no power to the traditional mechanical steering system of the steering wheel control will be quite arduous, therefore at present, the basic has adopt the power steering system. And the control requirements of steering decreases with the speed increase. And at high speed due to the steering wheel torque will be very light, in order to avoid interference with steering wheel tiny force caused by the vehicle deviates from the direction, cut for pavement uneven impact caused by the impact of the steering wheel to the steering wheel 'thugs' phenomenon, and at the end of the turn to the steering wheel can have stable automatic correction function to keep the car straight, make the driver through the steering wheel in the process of steering wheel and the ground motion between the can always maintain a proper sense of 'road', in the car at high speed and hope of steering system is a kind of 'reverse' power, namely the appropriate increase of steering system damping. Second, steering control has higher sensitivity and can simplify its structure to reduce the energy consumption of steering system control demand response timely vehicle steering wheel quickly. The steering of the transmission mechanism in addition to minimize spare travel clearance, also requires a power control device for steering response is fast. Currently used in the hydraulic, pneumatic and electric power steering system are mainly three kinds, the first two shortcomings energy consumption of large, slow response, etc. EPS and the existing electric power steering system USES a rotating motor, subject to electromagnetic clutch, gear reducer drive, such as mechanical mechanism, there are institutions, confused take up the space is large, shortcomings and so on response speed slower. According to the steering mechanism eventually drive the steering knuckle arm around tie rod are the characteristics of linear motion, using linear motor direct drive around tie rod, make the control more direct, faster dynamic response. Three, requirements within the motion stability requiring right steering wheel, the lateral deflection Angle of steering wheel and driving wheel differential ratio of correct stability, both the ratio and the steering wheel Angle always keep a certain relationship, to ensure that in turn to each wheel only rolling without sliding phenomenon. Through to the inside, when the car turned to the lateral movement process analysis of steering wheel and driving wheel, in order to guarantee the wheel rolling without sliding, requires four wheels should be spinning the same circle around. Set for the automobile wheelbase, L B for car wheel track, alpha, beta, respectively, the inside of the steering wheel Angle, insist on the steering wheel Angle ɑ must be less than the steering wheel deflection Angle in beta, and also asked that the inner and outer drive wheel shall meet the relevant differential conditions. To satisfy the requirement of the inner and outer steering wheel Angle, needs to make its steering left and right Angle of the tie rod and the steering knuckle arm into the corresponding trapezoidal namely the parallelogram relationship, this is also the basic method of all kinds of steering system widely used. To meet the requirements of the driving wheel differential using mechanical differential and electronic differential two kinds. The mechanical differential is a traditional method is generally used to cars, the large and complex. EDS and electronic differential system is to adopt the electronic control, has many advantages, along with the development of the electric car, especially the application of wheel hub motor, it will be the development direction of automobile driving wheel differential control. Four, minimize turning radius and improve the stability of the high speed steering to reduce the low speed turning when turning radius, facilitate the one stop at low speed or narrow way to travel; And improve the steering or driving stability when role in lateral wind, still need to adopt high-performance four-wheel steering to meet. Through the above analysis, according to the steering mechanism to boost the tie rod steering knuckle arm are about linear motion characteristics, to improve the rapid response of the steering system and meet the different speeds have corresponding function such as power requirements. The visual characteristics of the linear motor is directly produce linear motion, through the way of direct drive load, can be achieved from high to low speed different scope, such as high precision positioning control. Linear motor motion of (Primary)And the stator (Secondary)No direct contact between the stator and dynamic are rigid, and thus to ensure that the linear motor motion mute and high rigidity of whole body core moving parts. Main features: compact structure, small power consumption, quick move to the high velocity, high acceleration, high speed. the main products: stepper motor, brushless motor, servo motor, stepping motor drive, brake motor, linear motor and other kinds of models of the stepper motor, welcome to inquire. Telephone:
