1
Anthony T Ander, Davorin Hrovat, Craig J Simonds, Lee Fei Chen: Method for vehicular wheel spin control that adapts to different road traction characteristics. Ford Motor Company, Damian Porcari, Roger L May, January 11, 1994: US05278761 (66 worldwide citation)

Techniques for controlling the spin of driven wheels of a vehicle being driven over a surface, the vehicle also including nondriven wheels and an engine having a fuel system for varying engine torque. A characteristic signal representative of at least an estimate of the value of a traction character ...


2
Larry T Brown, Lee Fei Chen, Davorin D Hrovat: Automatic transmission gearshift control having feedforward response of clutch and its hydraulic actuation. Ford Motor Company, Frank G McKenzie, Roger L May, June 23, 1992: US05123302 (37 worldwide citation)

In a powertrain including an engine controlled by the position of the throttle valve, a hydrodynamic torque converter and multiple ratio automatic transmission connected to the drive wheels of the vehicle, a solenoid-operated hydraulic valve supplies pressurized fluid to engage and release the clutc ...


3
Larry T Brown, Lee Fei Chen, Davorin D Hrovat: Feedforward control for automatic transmission torque converter bypass clutch slip. Ford Motor Company, Frank G McKenzie, Keith L Zerschling, June 16, 1992: US05121820 (32 worldwide citation)

A powertrain including an engine controlled by the position of a throttle valve, a hydrodynamic torque converter having a bypass clutch, multiple ratio automatic transmission connected to the drive wheels of the vehicle, a solenoid-operated hydraulic valve that supplies pressurized fluid to engage a ...


4
Lee Fei Chen: Three-phrase clamp-type power meter. Rosenberg Klein & Lee, July 18, 2000: US06091237 (20 worldwide citation)

A three-phase clamp-type power meter comprises a main body suitable to be held by hand during operation, a clamp assembly to clamp around an external power line to measure the current flowing in the power line, two test terminals on the main body for connecting two external power lines to measure a ...


5
Davorin D Hrovat, Lee Fei Chen: Robust torque estimation using multiple models. Ford Motor Company, Roger L May, Peter Abolins, September 19, 1995: US05452207 (19 worldwide citation)

A method is provided, for use in controlling an apparatus or for use by a controller of apparatus, for estimating a single torque variable utilizing multiple models. In one embodiment, the apparatus is a vehicle. The method includes the steps of sensing operating parameters to obtain associated oper ...


6
Anthony T Ander, Davorin Hrovat, Craig J Simonds, Lee Fei Chen: Vehicular surface traction characteristic estimation techniques. Ford Motor Company, Peter Abolins, Roger L May, October 8, 1996: US05563792 (8 worldwide citation)

A technique for estimating a traction characteristic of a surface under a moving vehicle, such as the coefficient of friction of the surface. The traction characteristic can be estimated by generating a torque signal representative of at least an estimate of the amount of torque applied to the drive ...


7
Lee Fei Chen: Multifunctional meter with dual input channels. William E Pelton Esq, August 7, 2001: US06271654 (5 worldwide citation)

A multifunctional meter with two pairs of input channels is disclosed. The meter has a function key disposed thereon for a user to select and set various functions. A first input channel and a second input channel are respectively formed on the meter by two sets of positive probe sockets and negativ ...


8
Lee Fei Chen: Dividing sheet for spiral notebook or ring binder. Beautone, September 24, 2003: EP1346848-A1 (4 worldwide citation)

A dividing sheet for a spiral notebook or a ring binder includes a first number of barbs (32) extending from one edge for engaging the dividing sheet (30) with a spiral (35) of a spiral notebook (40) so as to divide the spiral notebook into different divisions. The dividing sheet (30) further includ ...


9
Anthony T Ander, Andrew A Adamczyk, Davorin Hrovat, Lee Fei Chen: Vehicular wheel spin control techniques. Ford Motor Company, Peter Abolins, Roger L May, November 15, 1994: US05365441 (3 worldwide citation)

Techniques for controlling the spin of driven wheels of a vehicle also including non-driven wheels and an engine controlled by a spark angle and/or throttle position. The spark angle is controlled by a signal responsive to a slip error signal and a slip error derivative signal in order to alter the ...


10
Lee Fei Chen: Power supply having a mixed mode regulator. William E Pelton Esq, September 10, 2002: US06449177 (1 worldwide citation)

A power supply having a mixed regulator is able to provide the suitable power source according to the changing load by a switching mode voltage circuit and a series pass controlling circuit. The series pass controlling circuit has high sensitivity in detecting the changing the load, thus the power s ...