DIY electric skateboard top-secret tips shared

DIY electric skateboard top-secret tips shared

• The two wires of the brush motor are connected to the positive and negative DC voltages. Reverse connection can be achieved. It can also be connected to a brush ESC and controlled by a remote control.
• The brushless motor has three wires and cannot be directly connected to DC power. It needs to be connected to an electric regulator (electronic speed controller, ESC). Reverse rotation can be achieved by swapping any two of the three wires (inductive motors cannot be swapped).
• Operating voltage *KV value = revolutions per minute
• Skateboard motor no-load speed * 80% = load speed (specifically depends on the load size)
• Inductive motors need to use an inductive ESC and plug in the sensor wire to use it. For the inductive and non-inductive integrated ESC, it can also run in a non-inductive state without plugging in the sensor wire.
• The sensor is used to assist the motor in starting. It will detect the angle of the magnet and send it to the ESC. The ESC can accurately start the motor to achieve a fixed-point start.
• When the sensorless motor is started, the ESC will blindly supply power to the three groups of phases in sequence, causing jitter at the start and normal operation after the start.
• Currently, there are 50-level, 63-level, 70-level in-wheel motors, etc. For 50-level motors, it is recommended to use an inductive motor, which will provide a better starting experience. For 63-level and above motors, non-inductive motors can be used to reduce costs.
• Most remote controls currently use 2.4G remote controls, which is currently recognized as a more stable frequency.
• The principle of remote control binding is that the receiver changes and saves the same value as the remote control, so one remote control can control multiple receivers, but multiple remote controls cannot control one receiver.
• One receiver can control multiple ESCs at the same time, provided that the ESCs run synchronously. When controlling multiple ESCs, only one set of positive power supplies can be reserved.
• Most batteries use lithium ion batteries (18650) or lithium polymer batteries (soft pack batteries). A single cell is 3.7V and a full charge is 4.2V.
• Capacity ampere-hour * discharge C number = maximum current value of the battery, so small-capacity batteries should be selected with a large discharge C number, and vice versa.
• The charger must choose a charger model corresponding to the battery. The larger the charging A number, the faster the charging speed.