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.:
Date of Patent:
Sep. 19, 2017
Filed:
Jun. 21, 2016
Applicant:
Proterra Inc., Greenville, SC (US);
Inventor:
Seneca Andrew Schepmann, Greenville, SC (US);
Assignee:
Proterra Inc., Greenville, SC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60L 15/20 (2006.01); B60W 10/08 (2006.01); B60L 11/18 (2006.01); B60W 20/00 (2016.01); B60L 9/00 (2006.01);
U.S. Cl.
CPC ...
B60L 15/2045 (2013.01); B60L 11/1861 (2013.01); B60W 10/08 (2013.01); B60L 9/00 (2013.01); B60L 2200/18 (2013.01); B60L 2240/421 (2013.01); B60L 2240/423 (2013.01); B60L 2250/26 (2013.01); B60W 20/00 (2013.01); B60W 2510/081 (2013.01); B60W 2540/10 (2013.01);
Abstract
A control unit of an electric vehicle receives a signal indicative of an operator desired torque and sends a signal to the traction motor to output a value of torque that is the algebraic sum of the operator desired torque and a torque modification factor calculated by the control unit. The control unit calculates the torque modification factor from an efficiency map of the motor which indicates the efficiency of the motor as a function of its output torque and rotational speed.