Patent ID: 11876476
Assignee: PIAGGIO & C. SPA
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 0:
1. A rideable saddle vehicle comprising:
an electric traction motor which includes a stator and rotor;
a first vehicle speed measurement sensor configured to generate a first signal which is characteristic of a sensor detected speed of the vehicle; and
a control system of the vehicle comprising;
a first unit which supplies and controls power to said electric traction motor on a basis of a first control signal, said first control signal being characteristic of torque selectively required by said electric traction motor; and
a computing unit configured to generate a second signal which is characteristic of an estimated speed of the vehicle, wherein said computing unit comprises first computing means configured to calculate an angular position of said rotor with respect to said stator on a basis of a counter-electromotive force produced by said electric traction motor, and wherein said second signal is generated on a basis of a value of said angular position calculated by said first computing means;

wherein said first control signal is generated on a basis of a torque signal and on the basis of at least one of said first signal and said second signal, which are respectively characteristic of the sensor detected and estimated speeds of said vehicle.