Electric cars do not turn electricity on the matter
Electric bicycle after the whole car is energized, that is, the motor does not turn, the general motor failure can be found in the following 6 points:1., the first case is the simplest fuse burns. In this case, the motor will be replaced after the fuse is replacedOK, the cost of the maintenance is the lowest.
2., the second case is the power switch is broken, replace the power switch. Judge: open the power switch, with a multimeter resistance between the input terminal and the output terminal of the power switch to measure ohm files, such as the resistance value of zero is normal, such as the resistance is infinite, then the power switch is broken, replace the power switch.3., the third kind is the Huo Huo turn, bad. The specific diagnostic method is to use the multimeter DC voltage files to measure the output of the turnThe output voltage of the green line will be normal if there is 1-4.2 voltage output. If there is no voltage output, the switch will be burned out, and the switch should be replaced.
4., the controller is bad.DC voltage with multimeter to measure the output of the red controller wiring (then turn line plug), such as the output voltage of 5 volts is the normal controller, the voltage output of the controller without damage, the need to replace the controller.5. the terminals of the motor are loose, and check each plug connection again. It is possible that the battery box does not come into the frameBit, contact is bad.6., the last case is the motor burned out. Disconnect the motor and the controller. The rest of the wires are connected and rotated slowlyThe motor uses a multimeter to measure the Holzer line to see if there is a voltage change in the signal. If there is no change in the phase, the motor will burn off the hall element and cause a lack of phase. The motor must be replaced. This is also the most expensive maintenance.
