logo

For the Inventor, By the Inventor

The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10703435 B1

PDFFull Text
Date of Patent:
Jul. 07, 2020

Filed:

Oct. 18, 2016

Control method of a powertrain unit of an assisted pedal bicycle and related assisted pedal bicycle

Applicant:

Piaggio & C. Spa, Pontedera, IT;

Inventor:

Paolo Capozzella, Pontedera, IT;

Assignee:

PIAGGIO & C. S.P.A., Pontedera, IT;

Attorney:

Cantor Colburn LLP

Primary Examiner:

Richard M Camby

Int. Cl.
CPC ...
B62M 6/50 (2010.01); B60L 15/02 (2006.01); B62M 6/55 (2010.01); B62M 6/45 (2010.01); B60L 50/20 (2019.01); B60L 50/51 (2019.01); B60L 53/12 (2019.01);
U.S. Cl.
CPC ...
B62M 6/50 (2013.01); B60L 15/025 (2013.01); B60L 50/20 (2019.02); B60L 50/51 (2019.02); B60L 53/12 (2019.02); B62M 6/45 (2013.01); B62M 6/55 (2013.01); B60L 2200/12 (2013.01); B60L 2210/40 (2013.01); B60L 2240/42 (2013.01); Y02T 10/643 (2013.01); Y02T 10/7005 (2013.01); Y02T 10/7072 (2013.01); Y02T 10/7241 (2013.01); Y02T 90/122 (2013.01); Y02T 90/127 (2013.01); Y02T 90/14 (2013.01);
Abstract

A control system and method for a powertrain unit of a pedal assisted electrical bicycle, the powertrain unit including an electrical motor, a DC/AC converter to supply the motor from a battery wherein the following steps are taken: starting the electrical machine in order to rotate the rotor; estimating a back electromotive force produced by the electrical machine; estimating the angular position of the rotor with respect to the stator winding starting from the estimation of the back electromotive force; controlling the DC/AC converter based on said estimated angular position in order to make it supply the stator winding so that said electrical machine delivers a torque.

Find Patent Forward Citations

Loading…