Patents Assigned to Toyota Jidosha Kogyo Kabushiki Kaisha
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Patent number: 4495830Abstract: An automatic transmission for a vehicle having a torque converter driven by an engine, an input shaft driven by the torque converter, a gear train driven by the input shaft, an output shaft driven by the gear train, a counter drive gear fixed to the output shaft at one end thereof opposite the input shaft, a counter shaft substantially parallel to the output shaft, a counter driven gear fixed to the counter shaft at one end thereof and meshed with the counter drive gear, a differential drive pinion gear fixed to the counter shaft at the other end thereof and meshed with a drive gear for a differential gear, first and second tapered roller bearings near the counter driven gear and the differential drive pinion gear, respectively, for supporting the counter shaft, said counter shaft being accommodated in a counter shaft chamber of a transmission casing, said counter driven gear being accommodated in a transfer chamber adjacent to the counter shaft chamber and separated therefrom by the first tapered roller bearType: GrantFiled: July 1, 1982Date of Patent: January 29, 1985Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Hideki Yasue, Kagenori Fukumura
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Patent number: 4496134Abstract: A rotary solenoid actuator for proportionally controlling the flow of fluid, such as air, in a pipe comprises a housing with a rotor rotatably mounted thereon. A stationary coreless coil for generating a magnetic field in response to a control current therethrough is mounted in the housing. A permanent magnet is affixed to a rotatably mounted shaft within the coil, and a return spring is attached to the rotating shaft. Due to low hysteresis in the coreless coil, there is a linear relationship between the control current and the fluid flow.Type: GrantFiled: August 27, 1981Date of Patent: January 29, 1985Assignees: Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Takaharu Idogaki, Hisasi Kawai, Kyo Hattori, Kazuhiro Sakurai
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Patent number: 4494497Abstract: In automatically stopping or restarting an engine on a basis of detecting an operational state of each component of a vehicle with the engine mounted thereon, judgement as to whether first condition of setting the function of allowing the engine to automatically stop and restart, second condition of automatically stopping the engine after the function is set and third condition of automatically restarting the engine after the function is set are fulfilled or not, respectively, is made by "and" of a plurality of signals including at least two or more signals out of a signal indicating an engine rotational speed, a signal indicating the generating condition of an alternator and a third signal indicating readiness or unreadiness for starting of the vehicle.Type: GrantFiled: June 14, 1982Date of Patent: January 22, 1985Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Shigekatsu Uchida, Takao Akatsuka, Takahide Kawamura
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Patent number: 4491096Abstract: A two-stroke cycle gasoline or diesel engine having: at least two two-stroke cycle power cylinder - piston assemblies each having two horizontally opposed pistons, incorporating uniflow scavenging, and operating with a phase difference of 180.degree. relative to each other; at least one double acting scavenging pump cylinder - piston assembly which has two horizontally opposed pistons and is driven by the power cylinder - piston assemblies by way of a pair of mutually synchronized common crankshafts and crank mechanisms which connect the pistons of the power cylinder - piston assemblies and the pump cylinder - piston assembly with the common crankshafts, wherein the crank radius of the common crankshafts with respect to the pump cylinder - piston assembly is substantially smaller than that with respect to the power cylinder - piston assemblies.Type: GrantFiled: March 6, 1979Date of Patent: January 1, 1985Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Masaaki Noguchi, Yukiyasu Tanaka, Isao Igarashi
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Patent number: 4491550Abstract: A variable venturi-type carburetor comprising a suction piston which has a tip face defining a venturi portion. The tip face has a flat upstream end portion. A raised wall is formed on the inner wall of an intake passage, which faces the tip face of the suction piston. The raised wall has a tip edge having an approximately V-shaped cross-section. The flat upstream end portion of the tip face of the suction piston cooperates with the tip edge of the raised wall for defining an approximately isosceles triangular-shaped air inlet control opening therebetween when the amount of air fed into the cylinder of an engine is small.Type: GrantFiled: June 8, 1984Date of Patent: January 1, 1985Assignees: Toyota Jidosha Kogyo Kabushiki Kaisha, Aisan Industry Co. Ltd.Inventors: Norihiko Nakamura, Takaaki Itoh, Toshiharu Morino
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Patent number: 4491364Abstract: A lumber support system comprising an air bag disposed behind the upholstery sheet of a vehicle seat, a manual air pump and a valve assembly for controlling the supply of air from the manual air pump into the air bag as well as the discharge of the air contained in the air bag.Type: GrantFiled: February 12, 1982Date of Patent: January 1, 1985Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki KaishaInventors: Takemi Hattori, Kozo Esaki
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Patent number: 4491921Abstract: An output voltage from an O.sub.2 sensor is intermittently sampled and the sampled voltage is converted into a binary signal. The binary signal is applied to an electrical digital computer, and therein the following operations are carried out. First, the maximum value and minimum value of the applied binary signal are detected, then the difference between the maximum and minimum values and the sum of the maximum and minimum values are calculated. A reference value is calculated using the calculated difference and sum and the minimum value from a predetermined algebraic function. Thereafter, the applied binary signal is compared with the calculated reference value to generate a binary signal indicative of the comparison result. Then, the air-fuel ratio of the engine is adjusted in response to this binary signal calculated by the digital computer.Type: GrantFiled: December 22, 1981Date of Patent: January 1, 1985Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Shinichi Sugiyama, Yoshiki Chujo, Takehisa Yaegashi
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Patent number: 4491922Abstract: A bypass path is provided parallel to an intake path portion provided with a throttle valve, and the sectional area of flow in the bypass path is controlled by a valve body displaced by a stepping motor. The step value of the stepping motor is stored in a first memory storage of an electronic control. A second memory storage can keep values irrespective of opening and closing an ignition switch and the step value is stored also in the second memory storage. Corrected step values are supplied to the first memory storage from the second memory storage, from read only memory, or from a value dependent on temperature in a manner which will not result in stalling of the engine due to momentary interruptions in the supply of electric power to the electronic control.Type: GrantFiled: November 23, 1981Date of Patent: January 1, 1985Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Nobuyuki Kobayashi, Hiroshi Ito
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Patent number: 4489691Abstract: The ignition timing of an internal combustion engine is controlled to a predetermined fixed value, not only during starting but also until the engine has rotated by a predetermined number of rotations after starting.Type: GrantFiled: November 14, 1983Date of Patent: December 25, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Hironobu Ono, Jiro Nakano, Masaomi Nagase
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Patent number: 4490790Abstract: A gear selection state in an electronically controlled automatic transmission for a vehicle is determined in relation to the vehicle speed and speed of opening of a throttle valve in an intake system, i.e. depression of speed of an accelerator pedal. According to this invention, the faster the speed of the accelerator pedal depression, the greater the change in the gear change pattern is increased. Thus, a more desirable vehicle acceleration response is obtained.Type: GrantFiled: November 20, 1981Date of Patent: December 25, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Kazuo Shinoda
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Patent number: 4490717Abstract: A plurality of sections of drive route charts from a start point to a destination point of a car are sequentially switched for display on a CRT as the car travels by a predetermined distance. The drive route charts are stored in a memory as image information, together with distance information of distances from a predetermined reference point to distance correction points in the respective drive route charts. At the distance correction points of the respective drive route sections, the distance stored in the memory are updated by the actual travel distances of the car.Type: GrantFiled: June 9, 1982Date of Patent: December 25, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Takao Saito
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Patent number: 4487190Abstract: Electronic fuel injecting method and device for an internal combustion engine, wherein a basic injection time is obtained in accordance with an intake pressure of the engine and an engine rotational speed. During transitions, the basic injection time is corrected in accordance with the operating conditions of the engine so as to determine a fuel injection time. A throttle valve opening correction is increased or decreased in accordance with a changing speed of the throttle valve opening, and subsequently, is attenuated at a predetermined attenuation rate or restored at a predetermined restoration rate. An intake pressure is increased or decreased in accordance with a changing speed of the intake pressure, and subsequently, is attenuated at a predetermined attenuation rate or restored at a predetermined restoration rate. These corrections are combined to obtain a correction value for acceleration and deceleration, and the correction value is used to modify the basic injection time.Type: GrantFiled: June 23, 1982Date of Patent: December 11, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Toshiaki Isobe
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Apparatus for controlling the ignition timing of an internal combustion engine having a turbocharger
Patent number: 4485626Abstract: An ignition timing control apparatus for an internal combustion engine having a supercharger in which a feedback control of decreasing the supercharged pressure is done in order to obviate knocking, wherein when a detection is made of a knocking with a detection of decrease in the controlled supercharged pressure under the condition of a constant throttle opening-degree, the ignition timing just at the detection of knocking is held for the control of ignition timing.Type: GrantFiled: April 27, 1982Date of Patent: December 4, 1984Assignees: Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Koichi Moriguchi, Kenzi Iwamoto, Hisasi Kawai, Nobutaka Mizuno, Yasuhiro Ikuta -
Patent number: 4485772Abstract: An engine is automatically stopped under predetermined conditions, thereafter, automatically restarted under other predetermined conditions, and a primary check indicating device for indicating abnormal conditions in various components of a vehicle is forcedly turned OFF at least when the engine is automatically stopped. The primary check indicating device includes, for example, a charge warning lamp for indicating abnormality in the generating condition, an oil pressure lamp for indicating abnormality in the pressure of lubricating oil and an exhaust gas temperature lamp for indicating abnormality in the temperature of exhaust gas.Type: GrantFiled: June 16, 1982Date of Patent: December 4, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Shigekatsu Uchida, Takao Akatsuka, Takahide Kawamura
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Patent number: 4486837Abstract: An apparatus for controlling the operation of an automobile air conditioner comprises mode switches which permit selection between a manual control mode and an automatic control mode for the control of the flow rate of the conditioned air, and a digital computer incorporating therein a memory which memorizes the selected control mode in accordance with signals received from the mode switches. The digital computer is constituted to give instructions to control members of the air conditioner for controlling in accordance with the values stored in the memory, and to set in the memory a value representing the automatic control mode so as to operate the air conditioner in the automatic control mode when a main switch of the air conditioner is turned on.Type: GrantFiled: February 12, 1982Date of Patent: December 4, 1984Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Yasuhumi Kojima, Akiro Yoshimi, Michihiko Kamiya, Fumio Ootsuka, Takeo Matsushima
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Patent number: 4485622Abstract: An exhaust gas cleaning device comprises at least one exhaust gas flowing passage, at least one particulates collecting member composed of two filter elements having different heat capacity, which is disposed within the exhaust gas flowing passage and heating means which is interposed between the filter elements so as to be closely contacted therewith. The filter element having smaller heat capacity is disposed on the upper stream side of the heating means and the filter element having larger heat capacity is disposed on the downstream side thereof. The filter element having smaller heat capacity is rapidly heated by the heating means and the heat of the filter element having smaller heat capacity is transmitted to the filter element having larger heat capacity. All of the particulates collected by the particulates collecting member can be burnt off with excellent heat efficiency.Type: GrantFiled: October 7, 1981Date of Patent: December 4, 1984Assignees: Nippon Soken, Inc., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Shigeru Takagi, Yukihisa Takeuchi, Shigeru Kamiya, Masahiro Tomita, Kiyohiko Oishi, Kiyoshi Kobashi
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Patent number: 4483145Abstract: A master cylinder is provided on the cylinder body with a reservoir-receiving mouth formed near the border of the section of of a large diameter and the section of a small diameter of a stepped bore, a through hole being formed between the bottom surface of the reservoir-receiving mouth and the first pressure chamber, a compensation hole being formed between the bottom surface of the reservoir-receiving mouth and the second pressure chamber, a valve seat fitted in and fixed to the reservoir-receiving mouth and having an internal hole formed therein, a check valve provided within the reservoir-receiving mouth between the bottom surface of the reservoir-receiving mouth and the valve seat with the valve element being pressed against a resilient member fixed to the valve seat by means of a spring, a projecting member protruding into the first pressure chamber through the through hole provided for the valve element coaxially with the valve element so that the valve element is titlted to form a passage between theType: GrantFiled: December 28, 1981Date of Patent: November 20, 1984Assignees: Aisin Seiki Kabushiki Kaisha, Toyota Jidosha Kogyo Kabushiki KaishaInventors: Hiroaki Takeuchi, Hiroshi Kawaguchi, Kiyoshi Nishiwaki, Fujio Toba, Yoshihisa Nomura
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Patent number: 4484279Abstract: A vehicle speed control method for automatically maintaining the vehicle speed of an automobile at a desired speed without driver operation of the accelerator pedal includes a step of performing only the set operation for equalizing a reference speed to a detected actual vehicle speed irrespective of the actuation period of the set switch when the set switch is actuated under a condition in which the automatic vehicle speed control operation has not previously been executed. Thereafter, the desired vehicle speed can be correctly set to be higher, unchanged, or lower when the automatic vehicle speed control operation is initiated for less than a certain interval, within that interval, or longer than that interval.Type: GrantFiled: September 10, 1981Date of Patent: November 20, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventor: Masahito Muto
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Patent number: 4480499Abstract: An improved transverse-mount type driving device for an automobile, having an output gear provided between last and intermediate planetary gear units of an auxiliary speed change gear assembly, the output gear meshing with a driven gear on a transmission shaft which extends parallel with the auxiliary speed change gear assembly and mounts a drive gear at an end proximate the torque converter for meshing engagement with a differential drive gear which in turn transmits power to right and left axle shafts.Type: GrantFiled: May 11, 1981Date of Patent: November 6, 1984Assignee: Toyota Jidosha Kogyo Kabushiki KaishaInventors: Seitoku Kubo, Koujiro Kuramochi, Tatsuo Kyushima
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Patent number: 4479464Abstract: The air-to-fuel ratio of a combustible mixture supplied to an engine is controlled by a feedback loop which includes an integration circuit for integrating the output signal of an oxygen sensor which detects the oxygen concentration in the exhaust gases of the engine, to produce an output voltage. The output of the sensor is applied to the integration circuit through a switch which opens in response to predetermined conditions of the engine whereby the output voltage of the integration circuit is held at a value occurring just before the switch opens.Type: GrantFiled: September 7, 1978Date of Patent: October 30, 1984Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kogyo Kabushiki KaishaInventors: Toshio Kondo, Hideaki Norimatsu, Mitsuo Nakamura, Akira Masuda, Sigenori Kitazima