Device and method for regulating the assistance power of an electric power-assisted bicycle
First Claim
1. A device for regulating an assistance power of a bicycle fitted with an electrical power assistance machine, the device comprising:
- a rotation-sense detector arranged to detect a sense of rotation of pedals of the bicycle;
a speed sensor arranged to measure a speed of a wheel of the bicycle;
a central electronic controller arranged to calculate a total power of the bicycle from the speed, and to determine a power setpoint of an electric motor from the total power, the sense of rotation of the pedals, and a power assistance factor selected by a cyclist of the bicycle, anda speed adjustor or a torque adjustor arranged to control the electric motor as a function of the power setpoint determined by the central electronic controller.
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Accused Products
Abstract
A device is provided for regulating an assistance power of a bicycle fitted with an electrical power assistance machine. The device includes a rotation-sense detector, a speed sensor, and a central electronic controller. The detector is arranged to detect a sense of rotation of pedals of the bicycle. The speed sensor is arranged to measure a speed of a wheel of the bicycle. The central electronic controller is configured to calculate a total power of the bicycle from the measured speed, and to determine a power setpoint of an electric motor from the calculated total power, the sense of rotation of the pedals, and a power assistance factor selected by a cyclist of the bicycle. A method for regulating an assistance power of an electric power-assisted bicycle also is provided.
17 Citations
8 Claims
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1. A device for regulating an assistance power of a bicycle fitted with an electrical power assistance machine, the device comprising:
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a rotation-sense detector arranged to detect a sense of rotation of pedals of the bicycle; a speed sensor arranged to measure a speed of a wheel of the bicycle; a central electronic controller arranged to calculate a total power of the bicycle from the speed, and to determine a power setpoint of an electric motor from the total power, the sense of rotation of the pedals, and a power assistance factor selected by a cyclist of the bicycle, and a speed adjustor or a torque adjustor arranged to control the electric motor as a function of the power setpoint determined by the central electronic controller. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for regulating an assistance power of a bicycle fitted with an electrical power assistance machine, the method comprising:
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utilizing a rotation-sense detector of the electrical power assistance machine to detect a sense of rotation of pedals of the bicycle; utilizing a speed sensor of the electrical power assistance machine to measure a wheel speed of a wheel of the bicycle; utilizing a central electronic controller of the electrical power assistance machine to calculate a total power of the bicycle as a function of the sense of rotation, the wheel speed, and a set of predetermined parameters, and to determine a power setpoint of an electric motor of the electrical power assistance machine as a function of the total power of the bicycle, the sense of rotation of the pedals, and a predetermined power assistance factor selected by a cyclist of the bicycle, and utilizing a speed adjustor or a torque adjustor to control the electric motor as a function of the power setpoint determined by the central electronic controller. - View Dependent Claims (8)
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Specification