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Hamajima; Tetsuo
Toyota, JP
No. of patents:

Patent Number Title Of Patent Date Issued
7074160 Controller for driving system of vehicle July 11, 2006
A control device for a drive line of a vehicle, in which a drive line from a power source to drive wheel includes a wheel control for controlling the speed of the wheels, and a connection mechanism for increasing/decreasing a torque transmission capacity between the power source and
6537179 Vehicle drive apparatus and control method thereof March 25, 2003
A vehicle drive apparatus has a pump that supplies operating fluid for performing speed shift control of a power transfer apparatus, and a driving motor that drives the pump. If it is determined that the power transfer apparatus is in a neutral state (N range), it is then determined
5674154 Hydraulic control system for automatic transmission October 7, 1997
A hydraulic control system for an automatic transmission to establish a predetermined stage by applying a first frictional engagement element and releasing a second frictional engagement element, comprising: a first hydraulic servo for actuating the first frictional engagement element; a
5669849 Apparatus for controlling concurrent releasing and engaging actions of frictional coupling devic September 23, 1997
A motor vehicle shift control apparatus wherein two hydraulically operated frictional coupling devices are simultaneously released and engaged, respectively, to effect a clutch-to-clutch shift of an automatic transmission, including an overshoot control device for compensating the hy
5616094 Hydraulic control system for automatic transmission April 1, 1997
A hydraulic control system for an automatic transmission includes a regulator valve in a hydraulic circuit for supplying pressure to a servo of a frictional engagement element. The regulator valve has an input port, an output port and a drain port. A valve member of the regulator valve
5588927 Control system for automatic transmission December 31, 1996
A control system for an automatic transmission includes a first frictional engagement element and a second frictional engagement element; and a first hydraulic servo for controlling the application/release of the first frictional engagement element and a second hydraulic servo for contro
5583768 Shift control system for preventing engine racing December 10, 1996
A shift control system for shifting an automatic transmission from a predetermined gear stage to another by draining an oil pressure from predetermined frictional engagement element to release the same frictional engagement element and by feeding the oil pressure to another frictional
5473543 Shift timing detecting system for automatic transmission December 5, 1995
A shift timing detecting system for detecting the start of a shift of an automatic transmission A in terms of a change in the R.P.M. of a predetermined rotary member after a shift command has been outputted. The shift timing detecting system comprises: a detector for detecting a change

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