ABS anti-lock system who invented
Buick (BUICK) company in 1971 developed by the electronic control device automatically interrupt the engine ignition to reduce the engine output torque, to prevent the drive wheel to drive the anti-lock system.
Chrysler and Bendex (BENDIX) company developed the "SURE-TRACK" to prevent the four wheels were braking and locking system, in 1971 began equipped with the Imperial (IMPERIAL) sedan, its structural principles and Kay The SURE-TRACK is basically the same, and the difference is that the two or four wheels are anti-lock. Bosch and TEVES have also developed their own first-generation, electronically controlled, anti-lock systems, both of which are operated by electronic controls on the brake Road in the solenoid valve to control, directly to the brake wheel to adjust the electronic control pressure.
With the development of electronic technology, the development of electronic control brake anti-lock system is possible. In the late 1960s and early 1970s, some electronic control of the brake anti-lock system began to enter the product stage. In 1968, the company developed and produced a two-wheel brake anti-lock system called "SURETRACK", which was developed by the electronic control device according to the rear wheel speed signal inputted by the electromagnetic speed sensor. The rear wheel of the movement of the state to determine the control by the vacuum-driven brake pressure regulator on the rear brake wheel cylinder to adjust the brake pressure, and in 1969 by Ford equipment in Thunderbird (THUNDERBIRD) and the mainland · Mark III (CONTINENTALMKIII) on the car.
Bosch (BOSCH) company in 1936 the first access to the use of electromagnetic wheel speed sensor to obtain the wheel speed brake anti-lock system patents. Into the 50's, car brake anti-lock system began to be more widely concerned. Ford (FORD) company in 1954 will be the aircraft brake anti-lock system moved to Lincoln (LINCOIN) sedan, Kelsey Hayes (KELSEHAYES) company in 1957 known as "AUTOMATIC" brake anti The results show that the brake anti-lock system can prevent the car from losing control in the braking process and can shorten the braking distance. Chrysler (CHRYSLER) is also known as "SKIDCONTROL" during this period, The brake anti-lock system was studied. As a result of this period of various brake anti-lock system are used mechanical wheel speed sensor mechanical brake pressure adjustment device, therefore, access to the wheel speed signal is not accurate enough, the timing and accuracy of the brake pressure adjustment It is difficult to guarantee that the control effect is not ideal.
