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:
Feb. 26, 2002
Filed:
Feb. 11, 2000
Applicant:
Inventor:
Jeffrey Ronald Coles, Solihull, GB;
Assignee:
TRWLucasVarity Electric Steering Ltd., West Midlands, GB;
Primary Examiner:
Int. Cl.
CPC ...
H02K 2/112 ;
U.S. Cl.
CPC ...
H02K 2/112 ;
Abstract
An electric motor of the brushless type is disclosed which is so constructed and arranged as to provide a low braking torque. An electric power steering system incorporating such a motor is also disclosed. In a preferred arrangement, the motor comprises an interior permanent magnet motor. An advantage of providing a motor which generates low levels of braking torque in the event of a fault is that a driver can easily turn the wheel of the vehicle in the fault condition against the motor. This reduces the requirements for motor fault protection.