batteryGOLD
100 W
Most EV's , ebikes, escooters dont have regenerative or active energy production mode.
So there is a simple solution to add bonus to your actual system with low cost stuff electronics
U need some circuit that will pick up the energy from motor to battery while you touch brakes, plus a open / close reverse current from motor to battery circuit and a DC DC converter module to get up to batery voltage enabling charging.
Example for ebike:
-you have 2 brake switches that send signal to controller to turn off while braking, perfect.
-you will capture those 2 signals sum to control extra power ON/OFF MOSFET's relay circuit module.
-this circuit module enable/disable back current flow from motor to battery while any of the brake switches active (controller deactivates during this signals)
-To capture energy from brushless 3phase motor we need rectification.
-So we pick up some schottky diodes for high current, low voltage dropout. Parallel some and do a full wave rectifier or a voltage doubler rectifier, plus good rectification capacitors.
DC motor is direct out, so no rectification needed.
-This rectifier circuit is connected to motor cables phases paralleled with controller out phases
-Now back to enable/disable relay stage, this will be a simple MOSFETs module with control pin for enabling disabling current to battery flow similar to relay but electronics last forever.
-when any of brake switches ON , this module becomes active and motor energy will be rectified to DC and be sent out to DC DC converter module feeding battery, that DC DC module will convert voltage to 42V at limited current for battery charging CC
-After brakes non active , the MOSFET's relay module will become open circuit and current flows normal from controller to motor.
-Soon I can release some diagram of this stuff and bills of material electronics
Ive tested this system sucessful at escooter 2KW with 67,2V battery (voltage output from DC DC converter is adjustable to any battery)
-U can walk by feet pushing 2KW escoooter and charge battery 1Km walk gets 0,5Km bat capacity.
-At ebike U can pedal driving to charge battery , kind of capture energy extra mode while u keep pedaling
So there is a simple solution to add bonus to your actual system with low cost stuff electronics
U need some circuit that will pick up the energy from motor to battery while you touch brakes, plus a open / close reverse current from motor to battery circuit and a DC DC converter module to get up to batery voltage enabling charging.
Example for ebike:
-you have 2 brake switches that send signal to controller to turn off while braking, perfect.
-you will capture those 2 signals sum to control extra power ON/OFF MOSFET's relay circuit module.
-this circuit module enable/disable back current flow from motor to battery while any of the brake switches active (controller deactivates during this signals)
-To capture energy from brushless 3phase motor we need rectification.
-So we pick up some schottky diodes for high current, low voltage dropout. Parallel some and do a full wave rectifier or a voltage doubler rectifier, plus good rectification capacitors.
DC motor is direct out, so no rectification needed.
-This rectifier circuit is connected to motor cables phases paralleled with controller out phases
-Now back to enable/disable relay stage, this will be a simple MOSFETs module with control pin for enabling disabling current to battery flow similar to relay but electronics last forever.
-when any of brake switches ON , this module becomes active and motor energy will be rectified to DC and be sent out to DC DC converter module feeding battery, that DC DC module will convert voltage to 42V at limited current for battery charging CC
-After brakes non active , the MOSFET's relay module will become open circuit and current flows normal from controller to motor.
-Soon I can release some diagram of this stuff and bills of material electronics
Ive tested this system sucessful at escooter 2KW with 67,2V battery (voltage output from DC DC converter is adjustable to any battery)
-U can walk by feet pushing 2KW escoooter and charge battery 1Km walk gets 0,5Km bat capacity.
-At ebike U can pedal driving to charge battery , kind of capture energy extra mode while u keep pedaling