Jian Ming Wang

US Patent:

6805370, Oct 19, 2004

Filed:

Nov 8, 2002

Appl. No.:

10/290699

Inventors:

Timothy P. Raleigh - Macomb Township MI
Jian M. Wang - Ann Arbor MI

Assignee:

Visteon Global Technologies, Inc. - Dearborn MI

International Classification:

B60G 1110

US Classification:

280124175, 280124148, 28012417, 267227

Abstract:

An independent rear suspension for a motor vehicle chassis includes a pair of independent rear corner modules. Each rear corner module includes a generally-longitudinally-extending leaf spring whose forward end is adapted to be pivotally mounted to the vehicle chassis at a first forward attachment point, and whose rearward end is nonrotationally-coupled to a knuckle, such that the leaf spring operates as a trailing arm to longitudinally position the knuckle relative to the chassis. A shackle adapted to be pivotally mounted on the chassis at a second forward attachment point includes an eye that encompasses a portion of the spring intermediate the first and second end of the spring. The shackle permits a predetermined, nonzero range of relative longitudinal, transverse, and torsional movement of the intermediate portion of the leaf spring while otherwise transferring vertical loads from the intermediate portion of the spring to the chassis.

US Patent:

8116925, Feb 14, 2012

Filed:

Feb 24, 2009

Appl. No.:

12/391530

Inventors:

Jian M Wang - Ann Arbor MI, US
Eric M. Rask - Royal Oak MI, US
Chihang Lin - Ann Arbor MI, US

International Classification:

B60K 6/20
B60W 20/00
G06F 17/00

US Classification:

701 22, 180 658

Abstract:

A hybrid control system comprises a power loss (PL) determination module, a hysteresis estimation module, and a mode determination module. The PL determination module determines a power loss of a hybrid drivetrain based on an engine speed, a motor speed, and a vehicle speed. The hysteresis estimation module determines an average power loss of the hybrid drivetrain based on the power loss and determines a hysteresis power loss of the hybrid drivetrain based on the average power loss. The mode determination module selects an operation mode of the hybrid drivetrain based on the hysteresis power loss. The hybrid control system controls the hybrid drivetrain based on the operation mode.

US Patent:

8135526, Mar 13, 2012

Filed:

Oct 29, 2008

Appl. No.:

12/260242

Inventors:

Monika A Minarcin - Northville MI, US
Jon K. Logan - Howell MI, US
Jian M Wang - Ann Arbor MI, US
Eric M. Rask - Royal Oak MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI
Daimler AG - Stuttgart
Chrysler LLC - Auburn Hills MI
Bayerische Motoren Werke Aktiengesellschaft - Munich

International Classification:

G06F 6/00

US Classification:

701 70, 180 65285, 303152, 903947

Abstract:

A vehicle includes a powertrain system and a friction braking system communicating tractive torque with a driveline, the powertrain system including a torque machine, and an energy storage device connected to the torque machine, said torque machine communicating tractive torque with the driveline. A method for controlling regenerative braking and friction braking includes monitoring a vehicle operating point, determining a braking torque request, determining a regenerative braking motor torque ratio based upon the vehicle operating point wherein the regenerative braking motor torque ratio is non-linearly dependent on the vehicle operating point, and actuating the friction brake based upon the regenerative braking motor torque ratio and the braking torque request.

US Patent:

8204664, Jun 19, 2012

Filed:

Oct 29, 2008

Appl. No.:

12/260263

Inventors:

Monika A Minarcin - Northville MI, US
Jon K. Logan - Howell MI, US
Jian M Wang - Ann Arbor MI, US
Eric M. Rask - Royal Oak MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI
Daimler AG - Stuttgart
Chrysler Group LLC - Auburn Hills MI
Bayerische Motoren Werke Aktiengesellschaft - Munich

International Classification:

G06F 7/70
G05D 1/00
B60K 6/20

US Classification:

701 70, 701 84, 180 6521

Abstract:

A vehicle includes a friction braking system and a powertrain system including a torque machine operative to react tractive torque input from a wheel of the vehicle. A method for controlling braking in a vehicle includes monitoring operation of the powertrain system, determining a driver intended total brake torque, determining a regenerative braking capacity based upon the operation of the powertrain system, determining a regenerative braking request based upon a time-rate change in the regenerative braking capacity, and determining a motor torque command for the torque machine based upon the regenerative braking request.

US Patent:

20120062155, Mar 15, 2012

Filed:

Sep 14, 2010

Appl. No.:

12/881323

Inventors:

Jian Wang - Ann Arbor MI, US
Joanne Borchert - Peoria IL, US
Benjamin Gottemoller - Peoria IL, US
Bradley Bailey - Peoria IL, US

Assignee:

CATERPILLAR, INC. - Peoria IL

International Classification:

H02P 3/12

US Classification:

318380, 318471

Abstract:

A cooling system () for a retarding grid () having a plurality of resistors () and insulators () is provided. The cooling system () may include a blower () configured to actively cool the retarding grid () and a controller () configured to selectively enable the blower (). The controller () may enable the blower () based on thermal characteristics of the resistors () and the insulators () of the retarding grid (). The thermal characteristics may include a current resistor temperature and a projected insulator temperature.

US Patent:

20120132490, May 31, 2012

Filed:

Nov 4, 2011

Appl. No.:

13/289091

Inventors:

Jian Wang - Ann Arbor MI, US
Bradley Bailey - Peoria IL, US
Joanne Borchert - Peoria IL, US

Assignee:

CATERPILLAR, INC. - Peoria IL

International Classification:

B60L 7/18

US Classification:

188159

Abstract:

A method of derating a retarding grid assembly of a machine is provided. The method may determine the temperatures of resistive elements and insulators associated with the retarding grid assembly, generate a trigger if any one of the temperatures of the resistive elements and insulators exceeds a respective temperature threshold, and determine a magnitude of deration to be applied to a drivetrain associated with the machine in response to the trigger. The magnitude of deration may be based at least partially on feedback and feedforward analyses of the temperatures of the resistive elements and insulators. The magnitude of deration may correspond to a reduction in retarding capacity of the drivetrain.

US Patent:

58474790, Dec 8, 1998

Filed:

Apr 15, 1997

Appl. No.:

8/839724

Inventors:

Jian M. Wang - Tigard OR
Leoi Sun - Tigard OR
Charles J. Cheever - Beaverton OR
Frank A. Gray - Portland OR

Assignee:

SAE Magnetics (H.K.) Ltd. - San Jose CA

International Classification:

H02K 516
F16C 3206

US Classification:

310 90

Abstract:

A hydrodynamic spindle motor of the present invention may include a shaft having a thrust bearing plate, an insert surrounding the shaft above the thrust bearing plate, and a sleeve surrounding the shaft below the thrust bearing plate. In one embodiment the thrust bearing plate is substantially centrally positioned along the longitudinal axis of the shaft. Preferably either the shaft has annular skewed herringbone shaft grooves or, alternatively, the insert has annular skewed herringbone insert grooves and the sleeve has annular skewed herringbone sleeve grooves. A set of circulation channels above the thrust bearing plate and a set of circulation channels below the thrust bearing plate preferably cross a shaft bore to allow for flow of lubricating fluid. A face seal may be formed between the lower radial cap surface of an end cap and an upper radial insert surface of the insert. The face seal may be used to form a capillary seal when the motor is in a static state and a pumping seal when the motor is in a dynamic state.

US Patent:

20220344505, Oct 27, 2022

Filed:

Apr 22, 2021

Appl. No.:

17/237461

Inventors:

- Toronto, CA
Lingpeng Guan - San Jose CA, US
Jian Wang - Portland OR, US
Lingbing Chen - Portland OR, US

International Classification:

H01L 29/78
H01L 29/06
H01L 29/10
H01L 21/265
H01L 21/266
H01L 21/761
H01L 29/66

Abstract:

Transistor device and method of making thereof comprising a substrate heavily doped with a first conductivity type and an epitaxial layer lightly doped with the first conductivity type on top of the substrate. A body region doped with a second conductivity type is formed in the epitaxial layer wherein the second conductivity type is opposite the first conductivity type and a source region doped with the first conductivity type is formed in the body region of the epitaxial layer. An integrated planar-trench gate having a planar gate portion is formed on the surface of the epitaxial layer that is contiguous with a gate trench portion formed in the epitaxial layer.