The invention discloses a detection mechanism of a speed change mechanism of an electric bicycle. Magnets are adsorbed on a speed changer pull line, so that the magnets and the speed changer pull line synchronously move; linear Hall sensors detect the change of displacement of the speed changer pull line so as to induce the working state of a speed changer. The invention further discloses a speed changing method of the electric bicycle. When the linear Hall sensors induce a speed changing process, the linear Hall sensors transmit speed-change generating signals to a controller, so that the output power of a middle-mounted motor of the electric bicycle is reduced, and the tensile force of a chain is decreased; when the speed changing process is completed, the output power of the motor is recovered. The tensile force of the chain is reduced, so that the problem that during changing speed, an external speed changer generates too large noise or an internal speed changer is damaged is solved.
Detection mechanism of speed change mechanism of electric bicycle, and speed changing method of electric bicycle
2016-01-27
Patent
Electronic Resource
English
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