Patents by Inventor Yasuhisa Takeuchi
Yasuhisa Takeuchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4964048Abstract: A system and method for automatically controlling a vehicle speed to a desired cruise speed are disclosed in which when at least one of conditions that any one of command signals from corresponding operation command switches is outputted and that a microcomputer of the automatic cruise speed controlling system normally operates and outputs control command signals indicating that corresponding one of control valves is energized is satisfied, the power supply to the control valves is enabled. On the contrary, when at least one of conditions that none of the command signals from the corresponding command switches is outputted and that the microcomputer erroneously outputs control command signals indicating that the corresponding one of the control valves is energized is satisfied, the power supply to the control valves is disabled.Type: GrantFiled: October 27, 1988Date of Patent: October 16, 1990Assignee: Nissan Motor Company, LimitedInventors: Hiroshi Tanaka, Yohsiyuki Etoh, Yasuhisa Takeuchi
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Patent number: 4914596Abstract: A system and method for automatically controlling a vehicle speed to a desired cruise speed are disclosed in which whether after any one of command and release signals is outputted from the corresponding set/cruise, acceleration, resume, brake, clutch, and cancel switches, a control unit outputs a corresponding receipt signal via a corresponding output port is determined, whether the contents of the control command signals presently outputting through the respective control valves are equal to inverted levels at the respective control valve is determined, and a power supply to control valves for adjusting an operating variable of an engine driving force adjusting mechanism and the control unit is interrupted when at least one of the results of determinations indicates a negative result.Type: GrantFiled: October 31, 1988Date of Patent: April 3, 1990Assignee: Nissan Motor Company, LimitedInventors: Yoshiyuki Etoh, Hiroshi Inoue, Kazuyuki Mori, Koichi Suzuki, Kinichiro Nakano, Hiroyuki Nomura, Isao Yamamoto, Kiyoshi Yoshida, Yasuhisa Takeuchi, Hiroshi Tanaka
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Patent number: 4527155Abstract: A display of images on a screen which is installed in an automotive vehicle for displaying the driving direction and location of the automotive vehicle within a graphic pattern, such as a drive map, comprising: (a) a screen device; (b) a first memory unit in which data of a graphic pattern to be displayed on said screen device is stored; (c) a second memory unit in which at least one word and mark to be superimposed on the graphic pattern and those positional data on the graphic pattern are stored; (d) a signal generator which outputs a command signal to rotate the graphic pattern on said screen unit by an angle with respect to an original position; (e) a shift circuit which shifts the positions of all words and marks stored in said second memory unit to those rotated at the angle corresponding to the command signal from said signal generator; and (f) an image control unit which controls the display of graphic pattern rotated by the angle corresponding to the command signal from said signal generator on saidType: GrantFiled: March 2, 1982Date of Patent: July 2, 1985Assignee: Nissan Motor Company, LimitedInventors: Kiyoshi Yamaki, Hidetaka Suzuki, Haruto Tanaka, Yasuhisa Takeuchi
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Patent number: 4515040Abstract: A function generator circuit is provided which generates a target engine revolution speed electric signal indicative of a target engine revolution speed which is a first predetermined function of an accelerator pedal stroke electric signal indicative of a depression degree of an accelerator pedal. There is also provided another function generator circuit which generates a target engine torque electric signal indicative of a target engine torque which is a second predetermined function of the accelerator pedal stroke electric signal. A comparator compares the actual and target engine revolution speed electric signals and generates a deviation signal indicative of a difference between these signals. A shift control varies a reduction ratio in the continuously variable transmission to vary the revolution speed of the engine in a direction to reduce the deviation signal.Type: GrantFiled: August 26, 1982Date of Patent: May 7, 1985Assignee: Nissan Motor Company, LimitedInventors: Yasuhisa Takeuchi, Yoshiro Morimoto, Tadashi Suzuki
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Patent number: 4459667Abstract: A guidance method and system for an automotive vehicle which switches from an electronic navigational signal method to a dead reckoning method when any of the field strengths of three navigational electromagnetic wave signals drops below a predetermined lower limit or vice versa when the field strengths of the three navigational electromagnetic wave signals all exceed the lower limit. Therefore, even if the navigational wave signals are obstructed by buildings or mountains, it is possible to continuously determine and display the vehicle position. The guidance system according to the present invention comprises a receive-state detection unit for detecting three field strengths and for comparing the detected field strengths with a predetermined lower limit, and a selector for selectively outputting vehicle position signals on the basis of navigational signals or dead reckoning, in addition to the conventional electronic navigation system and dead reckoning system.Type: GrantFiled: March 10, 1982Date of Patent: July 10, 1984Assignee: Nissan Motor Company, LimitedInventor: Yasuhisa Takeuchi
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Patent number: 4456903Abstract: An optical signal transmission system for an automotive vehicle by which a number of electric signals generated from switches arranged on the steering wheel are transferred to other controllers optically and digitally for control the necessary vehicle operating conditions with high reliability, without producing electrical noise even while steering wheel is being turned. The optical signal transmission system of the present invention comprises optical transmission devices including an electricity-to-light converting means, a light-transmitting ring, a light-to-electricity converting means, in addition to a digital circuit including an encoder, decoder, etc.Type: GrantFiled: March 24, 1981Date of Patent: June 26, 1984Assignee: Nissan Motor Company, Ltd.Inventors: Norimasa Kishi, Kiyoshi Sasanuma, Yasuhisa Takeuchi, Shinichi Kato
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Patent number: 4450545Abstract: A voice responsive door lock system is provided wherein the operation of the door lock device is vocally controlled by the driver via a voice recognition unit.The voice responsive door lock system for a motor vehicle comprises a door position detection means, an indication means for indicating a question as to the necessity of locking the door, a voice recognition unit for identifying the driver's reply and producing a door lock command signal, and a door lock control means for actuating a door lock device upon receiving the door lock command signal.Type: GrantFiled: March 9, 1982Date of Patent: May 22, 1984Assignee: Nissan Motor Co., Ltd.Inventors: Norimasa Kishi, Kazunori Noso, Yasuhisa Takeuchi
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Patent number: 4441405Abstract: A solar radiation heat influx sensor mounted within an automotive vehicle fender mirror housing, which can accurately detect solar radiation heat influx due to rays of sunlight falling upon the vehicle. The detected heat influx value is used in controlling an automotive vehicle air-conditioning system to adjust passenger compartment air temperature, more specifically to determine an appropriate air conditioning air mix door opening percentage. The solar radiation heat influx sensor according to the present invention comprises a sensor body having inlet and outlet portions and a central window, a blower to drive air therethrough, an outside-air temperature sensor disposed in the inlet portion thereof and a warmed-air temperature sensor disposed in the outlet portion thereof, and a calculating unit to calculate solar radiation heat influx in response to the two detected temperatures in accordance with a predetermined equation.Type: GrantFiled: February 22, 1982Date of Patent: April 10, 1984Assignee: Nissan Motor Company, LimitedInventor: Yasuhisa Takeuchi
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Patent number: 4401852Abstract: A voice response control system is disclosed which comprises a voice recognition unit adapted to recognize a voice instruction given thereto and operate a vehicle component in accordance with the given voice instruction. A control circuit is provided for turning down the sound volume of an audio set to a sufficient level to ensure correct voice instruction recognition before a voice instruction is given the voice recognition unit and returning the audio set to its initial condition at the termination of the voice instruction recognition.Type: GrantFiled: January 13, 1982Date of Patent: August 30, 1983Assignee: Nissan Motor Company, LimitedInventors: Kazunori Noso, Hiroshi Yano, Norimasa Kishi, Yasuhisa Takeuchi
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Patent number: 4345522Abstract: Disclosed is an aerial transport system which comprises an aerial track having therealong a pair of electric current-carrying cables in a parallel relationship with respect to one another and with respect to the track, and self-propelled carriages. Each carriage has an electric current collector to collect electric power from the current-carrying cables and to supply the power to an electrical driving mechanism mounted thereon for driving wheels engaging with the track. The current-carrying cables are separated at longitudinal given intervals so as to define respectively independent electric power supply zones. The transport system further includes a system for controlling electric power supply for the vehicle or carriage including a mechanism for detecting a vehicle or carriage position in the track provided in each power supply zone.Type: GrantFiled: January 8, 1980Date of Patent: August 24, 1982Assignee: Nissan Motor Company, LimitedInventors: Keiichi Miyamoto, Naohiko Inoue, Yasuhisa Takeuchi
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Patent number: 4125825Abstract: In an automatic brake controller having a vehicle velocity detector for detecting vehicle velocity and a wheel velocity detector for detecting wheel velocity, a failure detecting system is provided for the vehicle velocity detector and the wheel velocity detector. A comparator which makes a comparison between the vehicle velocity signal obtained from said vehicle velocity detector and the wheel velocity signal obtained from said wheel velocity detector generates a predetermined output signal when the difference between both the output signals of said detectors exceeds a predetermined value, and a logical circuit is responsive to said output signal from said comparator to provide a failure signal when a signal representative of a normal transit condition is being generated.Type: GrantFiled: April 27, 1976Date of Patent: November 14, 1978Assignees: Nissan Motor Company, Ltd., Hitachi, Ltd.Inventors: Yasuhisa Takeuchi, Kenji Maio, Junichiro Matsumoto
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Patent number: 4073545Abstract: A vehicle controlling device wherein an output signal proportional to vehicle velocity obtained from a vehicle velocity detector and an output signal proportional to wheel velocity obtained from a wheel velocity detector are to be compared by a comparator and the slip state of the wheel is to be detected from the result of the comparison, thereby to control a brake mechanism, characterized in that an adder circuit is provided which adds an output signal proportional to a predetermined wheel velocity at a low vehicle running speed to the output signal obtained from the wheel velocity detector and that the output signal of the adder circuit and the output signal from the vehicle velocity detector are compared by the comparator to ensure accurate brake control at all vehicle speeds.Type: GrantFiled: April 27, 1976Date of Patent: February 14, 1978Assignees: Nissan Motor Company, Limited, Hitachi, Ltd.Inventors: Yasuhisa Takeuchi, Kenji Maio, Junichiro Matsumoto
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Patent number: 4009640Abstract: An anti-lock brake system includes a center hydraulically boosted master cylinder for hydraulically actuation of wheel master cylinder associated with a wheel brake, a center brake control valve assembly functioning to channel pump generated fluid pressure to a booster of a center master cylinder for actuation thereof and including an operator actuating assembly functioning to dampen the reaction force to an operator pedal during anti-lock control operation and permit booster actuation in the event of the loss of pump generated fluid pressure, an hydraulically actuated return piston for return actuation of the wheel master cylinder to relieve brake pressure to the wheel brake, and an anti-lock control valve functioning to cyclically apply and release fluid pressure to the hydraulically actuated return piston for actuation thereof during anti-lock control operation.Type: GrantFiled: June 20, 1975Date of Patent: March 1, 1977Assignee: Nissan Motor Co., Ltd.Inventors: Yasuhisa Takeuchi, Haruhiko Iizuka
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Patent number: 4000928Abstract: A device for effectively controlling the braking system of a wheeled vehicle to eliminate a possibility of skidding comprising an electric computing module which is responsive to electric signals fed thereinto from a vehicle speed sensor mounted on an extra wheel which mechanically contacts the road surface, and a vehicle supporting wheel rotational speed sensor.Type: GrantFiled: May 8, 1975Date of Patent: January 4, 1977Assignee: Nissan Motor Co., Ltd.Inventors: Yasuhisa Takeuchi, Haruhiko Iizuka
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Patent number: 3985400Abstract: A skid control system for fluid-actuated brake of a wheeled vehicle which comprises a release and reapplication signals generator for producing a release signal or a reapplication signal, a wheel velocity sensor, an actuating circuit for producing an actuating signal in accordance with the release signal, a reference wheel velocity signal generator for producing a reference wheel velocity signal in response to the actuation signal and the actual wheel velocity signal from the wheel velocity detector, a comparator for producing a gate signal when the actual wheel velocity signal voltage exceeds the reference wheel velocity signal voltage, an AND gate for passing therethrough the reapplication signal when triggered by the gate signal, and a brake pressure modulator for modulating the brake pressure in accordance with the release signal and the reapplication signal passed through the AND gate.Type: GrantFiled: September 18, 1975Date of Patent: October 12, 1976Assignee: Nissan Motor Co., Ltd.Inventors: Haruhiko Iizuka, Yasuhisa Takeuchi
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Patent number: 3958834Abstract: An unbraked condition sensor is incorporated in an automatic anti-skid braking system for use with a wheeled vehicle. The unbraked condition sensor comprising a timer, a comparator and an AND gate senses an unbraked condition and functions in such a manner that the AND gate produces a brake re-application output signal for reapplying braking force to the vehicle wheels in response to both a time-delayed output signal which is produced from the timer after a given time delay and a wheel deceleration output signal which is produced from the comparator when the wheel acceleration does not exceed a predetermined threshold value after releasing of the braking force. The predetermined time delay is adjustable.Type: GrantFiled: July 15, 1974Date of Patent: May 25, 1976Assignee: Nissan Motor Co., Ltd.Inventors: Yasuhisa Takeuchi, Haruhiko Iizuka, Mitsuhiko Ezoe
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Patent number: 3942151Abstract: An electric circuitry tests the memory and visual capabilities of a driver shutting off the engine if he fails in the test. Digits are flashed one at a time at random on a screen for the driver to memorize. A full set of digits is then flashed in numerical order one at a time for the driver to press a button when each of the memorized digits reappears on the screen.Type: GrantFiled: October 10, 1973Date of Patent: March 2, 1976Assignee: Nissan Motor Co., Ltd.Inventor: Yasuhisa Takeuchi