IP Library Granted Patent US 7,398,846
Granted Patent B2
US 7,398,846 · App. 11/223,816 · Granted Jul 15, 2008

Vehicle wheel system

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Quick Facts
Patent No.
US 7,398,846
App. No.
11/223,816
Granted
Jul 15, 2008
Kind
B2
Abstract

A wheel assembly for a vehicle includes a rotatable wheel having a selectively adjustable steering angle. A steering actuator is operatively connected to the wheel and is configured to selectively adjust the steering angle of the wheel and not any other wheels. The wheel assembly allows independent control of the steering angle of the wheel. The wheel assembly also facilitates modular construction of vehicles by enabling the packaging of mechanical steering components in a preassembled wheel module with simple electrical connections to a vehicle chassis.

Claims (7)

1. A vehicle comprising:

a vehicle chassis frame;

a wheel being rotatably mounted with respect to the vehicle frame;

a wheel motor having a housing at least partially contained within the wheel; and

a brake system including a drum member being mounted with respect to the wheel for rotation therewith and having a first portion that extends radially on the outboard side of the wheel motor housing and a second portion that extends axially from the outboard side of the housing to the inboard side of the housing, said second portion defining a friction surface on the inboard side of the housing; and

a brake shoe configured to selectively engage the friction surface.

2. The vehicle of claim 1 , further comprising a by-wire actuator configured to selectively cause the shoe to contact the friction surface.

Assignments (12)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034184/0001 →
CHANGE OF NAME Recorded Feb 10, 2011
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 025780/0936 →
SECURITY AGREEMENT Recorded Nov 8, 2010
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: WILMINGTON TRUST COMPANY
Reel/Frame 025327/0041 →
RELEASE OF SECURITY INTEREST Recorded Nov 5, 2010
From: UAW RETIREE MEDICAL BENEFITS TRUST
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025314/0901 →
RELEASE OF SECURITY INTEREST Recorded Nov 4, 2010
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 025245/0587 →
SECURITY AGREEMENT Recorded Aug 28, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UAW RETIREE MEDICAL BENEFITS TRUST
Reel/Frame 023162/0093 →
SECURITY AGREEMENT Recorded Aug 27, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 023156/0142 →
RELEASE OF SECURITY INTEREST Recorded Aug 21, 2009
From: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023127/0402 →
RELEASE OF SECURITY INTEREST Recorded Aug 20, 2009
From: UNITED STATES DEPARTMENT OF THE TREASURY
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 023124/0519 →
SECURITY AGREEMENT Recorded Apr 16, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: CITICORP USA, INC. AS AGENT FOR BANK PRIORITY SECURED PARTIES; CITICORP USA, INC. AS AGENT FOR HEDGE PRIORITY SECURED PARTIES
Reel/Frame 022553/0493 →
SECURITY AGREEMENT Recorded Feb 4, 2009
From: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
To: UNITED STATES DEPARTMENT OF THE TREASURY
Reel/Frame 022201/0405 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 16, 2005
From: YOUNG, DAVID A.; SHABANA, MOHSEN D.; BORRONI-BIRD, CHRISTOPHER E.; CHERNOFF, ADRIAN B.; VITALE, ROBERT L.; ZEMKE, BRUCE E.
To: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Reel/Frame 017026/0290 →