US 12,077,246 B2
Friction coefficient determination to adjust braking for electronic bicycles
Justin Allan Corbett, Bothell, WA (US); David Carlyle Hansen, Mercer Island, WA (US); Dylan Eugene Meehan, Seattle, WA (US); and Matthew William Sheen, Seattle, WA (US)
Assigned to WEEL AUTONOMY INC., Walnut, CA (US)
Filed by Weel Autonomy Inc., Walnut, CA (US)
Filed on Jan. 13, 2022, as Appl. No. 17/574,930.
Claims priority of provisional application 63/136,643, filed on Jan. 13, 2021.
Prior Publication US 2022/0219777 A1, Jul. 14, 2022
Int. Cl. B62M 6/65 (2010.01); B60L 7/18 (2006.01); B60L 15/20 (2006.01); B60W 10/08 (2006.01); B62J 45/412 (2020.01); B62J 45/413 (2020.01); B62J 45/415 (2020.01); B62L 1/00 (2006.01); B62L 3/00 (2006.01); B62L 3/02 (2006.01); B62M 6/45 (2010.01); B62M 6/50 (2010.01); B62M 6/60 (2010.01); B60L 50/60 (2019.01); B62M 6/55 (2010.01)
CPC B62M 6/65 (2013.01) [B60L 7/18 (2013.01); B60L 15/2009 (2013.01); B60W 10/08 (2013.01); B62J 45/412 (2020.02); B62J 45/413 (2020.02); B62J 45/4151 (2020.02); B62J 45/4152 (2020.02); B62L 1/00 (2013.01); B62L 3/00 (2013.01); B62L 3/02 (2013.01); B62M 6/45 (2013.01); B62M 6/50 (2013.01); B62M 6/60 (2013.01); B60L 50/60 (2019.02); B60L 2200/12 (2013.01); B60L 2240/423 (2013.01); B60L 2240/465 (2013.01); B62M 6/55 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electronic bicycle, comprising:
a wheel coupled to a wheel hub motor, wherein the wheel hub motor is configured to rotate the wheel;
a battery coupled to the wheel hub motor, wherein the battery is configured to provide power to the wheel hub motor;
a processor;
a sensor coupled to the processor; and
a non-transitory, computer-readable medium comprising instructions that, when executed by the processor, cause the processor to:
receive sensor data from the sensor;
determine a coefficient of friction for the wheel based on the sensor data;
determine a maximum torque that can be applied to the wheel by the wheel hub motor based on the coefficient of friction;
receive a user input signal indicating a user intent to decelerate the electronic bicycle;
determine a target torque to apply to the wheel based on the user input signal;
responsive to a magnitude of the target torque being greater than a magnitude of the maximum torque, apply the maximum torque to the wheel by the wheel hub motor.