Electric bike motor using sensed air speed
First Claim
1. An electric bike comprising:
- an air speed sensor to sense air speed;
an electric motor to impart motive force to the bike; and
a controller operatively connected to the motor, the controller to control the electric motor using the air speed sensed by the air speed sensor and to switch to a regeneration mode charging a battery from the electric motor when an inclination is negative and gravity assists powering the bike forward.
1 Assignment
0 Petitions
Accused Products
Abstract
An electric bike is described and includes an air speed sensor to sense air speed at the bike, an electric motor to impart motive force to the bike, and a controller operatively connected to the motor, the controller to control the electric motor using the air speed sensed by the air speed sensor. The controller includes a set electric-motor parameter for the output power of the motor. The electric-motor parameter can be bike speed. The controller can also use ground inclination to determine the power to be output by the motor to assist in powering the bike. The controller can use ground inclination to determine the power to be output by the motor to charge a battery in the bike. The controller can set the power of motor assist to be greater in a greater headwind than in a lighter headwind. The controller uses rider weight and rider height as parameters for controlling the motor.
32 Citations
14 Claims
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1. An electric bike comprising:
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an air speed sensor to sense air speed; an electric motor to impart motive force to the bike; and a controller operatively connected to the motor, the controller to control the electric motor using the air speed sensed by the air speed sensor and to switch to a regeneration mode charging a battery from the electric motor when an inclination is negative and gravity assists powering the bike forward. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An electric bicycle method comprising:
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setting a rider effort level; sensing relative air speed using an airspeed sensor at the bicycle while the bicycle is in motion forwardly; and assisting the rider effort level with an electric motor providing motive force to a wheel based on the relative air speed sensed by the airspeed sensor, wherein assisting includes; sensing inclination of a bikeway and adjusting electric motor assist based on the inclination and the relative air speed, increasing the electric motor assist by at least twice when the bikeway is at an incline relative to a flat bikeway, and using the electric motor to charge a battery with the bikeway being a decline relative to a flat bikeway. - View Dependent Claims (14)
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Specification