How to investigate and deal with the good and bad of the electric car handlebar

Compared with electric vehicles, electric motorcycles will start faster, and the batteries used in electric motorcycles are larger than those used in electric vehicles, so electric motorcycles can run farther.

Hello brothers: the best judgment of the good or bad of the Datian electric car handlebar, since last year, the Datian controller with self-test function, if it is the "electric" display light on the instrument flashing, that is, the handle is not plugged in or broken. The "electric" light is always on and does not flash, and the car does not go, which is the controller program disorder.

1、The poor contact of the line is likely to be caused by the high-voltage series in a certain place of the line.

2. If the negative pole of the handle is broken (the negative pole may be in poor contact), it will fly, turn off the key and reopen the key, the controller will protect, and it will not react, and it is easy to judge that the handle is burning.

3. The controller is broken, and the current and voltage cannot be output normally, so replace the controller.

How fast or slow the e-bike travels:

It is determined by the polarity of the magnetic field induced by the Hall element. When the different polarities of the magnet approach or move away from the Hall element, the voltage value of the Hall element output will increase or decrease. Under normal circumstances.

When the handle is rotated inward, the voltage value of the output of the Hall element will be from low to high (the range of voltage values is between), which is called the positive handlebar; When the handle is turned outward, the output voltage of the Hall element will be from high to low (the range of voltage values is between), which is called the reverse handle.

Maybe there's something wrong with your car's control circuitry. If your handlebar is not damaged by external force or water ingress, it should be suspected that the faulty handlebar is a problem with the vehicle circuit. You can give it a try like this:

Replace your broken knob with another electric car to try, if it can be used, it is a problem with other circuits in your car, you should find a master with a high level of theory and practice to comprehensively investigate until the problem is fully solved. If it can't be used, it means that the handle is broken. In the case of opening the key, use a universal meter to measure the voltage of the signal line, one of which (generally red) has a voltage of 5V, and the other two are out of power, which means that it is normal, and then connect the red line and the remaining two signal lines in pairs, one of which should rotate at the highest speed after one connection, and the motor should stop rotating when the other signal line is also connected, so it should be judged that there is a problem with the quality of the handlebar, and it will be changed to a *** on the line. 3

In this case, if the handle is always easy to burn, this needs to be checked to see if it is a fault caused by a problem with the controller itself, and sometimes there is a problem with the controller itself, which will also cause the handle to be easy to break.

Question: The controller has changed.

1. Before maintenance, the electric vehicle is supported and supported, and then the key switch is turned on, and the rear wheel is continuously operated when the handle is rotated. If the spine is still not wild, other parts need to be further tested.

2. Open the front end cover of the electric vehicle and follow the signal of the turn bar to find the wiring plug in the end cover.

3. The handle plug is generally three wires: the red wire is the +5V power supply end, the black wire is the ground wire, and the green wire is the output line.

4. Unplug the handlebar plug, touch the red line on the side of the controller plug with the red watch pen, and touch the black wire with the black watch pen, if the measured voltage is +5V, it means that the controller is normal to supply power to the handlebar.

5. Then connect the plug, use the black watch pen to contact the metal sheet of the black line, and the red watch pen to contact the metal sheet of the green line, this is the turn handlebar, if the multimeter indicates the direct change from 1V to 4V, it means that the handle can be used normally, if the multimeter does not work, it means that there is a problem with the handle or controller.

Share the reasons why electric car handlebars are always bad and how to eliminate them.

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