EABS brake principle of electric bicycle, is the brake depth good or small?
EABS electronic brake system principle of electric vehicle1 、 design principle of EABS systemBrushless EABS system makes full use of the characteristics of electronic commutation of brushless system, and controls the different motion state of the motor by programming.At present, no mature way of control system for three-phase brushless motor six PWM driving mode, the 8 signal detection of the 3 Holzer element relative position of stator and rotor of the: 001, 010, 011, 100, 101, 110, 111, 000, two illegal state controller program to automatically delete: 000. 111, motor drive signals from the six signals.
EABS electronic brake system with 2 motor driver, first sets of normal state, control motor drive, power brakes; second sets of electric brake control program, program start when the electric brake signal, at the same time, the power of the Holzer signal man (Cheng Kong) adjustment, the motor is reversed, the equivalent of the magnetic field reversal, achieve rapid braking effect. For example, assuming that the Holzer signal of the motor is 001, the program changes it to 100 when the second sets of braking procedures start, and the rest of the state reverses accordingly. In this way, the motor will produce short-term high strength energy in power, energy flux rate is determined by the stator coil winding cutting, when the speed is reduced to 0 when the electric brake force disappears, i.e. the higher the speed of the braking force is strong. In the state of power failure, part of the energy generated by motor movement is used for motor braking, and the other part drives the power tube back into the battery through the controller's infield effect.
And the main features of EABS system(1) different from the former mechanical brake, the EABS system has a new idea of braking control. When there is a braking signal, the electric wheel hub is braked immediately, and the faster the braking effect is, the more obvious the braking effect is.(2) EABS electronic brake system does not consume battery power, on the contrary, in the braking moment and downhill brake will produce short-term return on the battery charge, although the short action time, but for the battery plate can play a protective effect, prolong the service life of the battery.EABS depth adjustmentThe user can according to their own brake depth riding comfort level to adjust the EABS, can be realized from the weakest to strongest adjustment, adjustment method: first press the brake handle, and then turn on the switch lock, and then turn from the lowest to the highest, and then began to go down from the peak regulation, if the high release lever. When the brake EABS maximum depth, with the downward adjustment to release the brake, the brake depth of EABS will be reduced, the EABS depth adjusted automatically stored in the microcontroller.
