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公开(公告)号：JPH07137589A
公开(公告)日：1995-05-30
申请号：JP28528393
申请日：1993-11-15
Applicant: TOYOTA MOTOR CORP
Inventor： SHIGEMATSU TAKASHI
Abstract: PURPOSE:To give an easy feeling to a driver by issuing an alarm a little earlier so as to recover the ability of the driver, in the controlling condition of the automatic operation in the which ambiance recognizing ability and the driving ability of the driver is reduced, and giving an instruction of the optimum operation to a driver having an unstable mental state. CONSTITUTION:An automatic operation means M1 controls the automatic operation of a vehicle. A propriety discriminating means M2 discriminates the propriety of the automatic operation from the running ambiance of the vehicle. A releasing means M3 releases the automatic operation when it is decided the automatic operation is not adequate by the above discrimination. An alarm means M4 issues an alarm when the relative distance to an object in front of the vehicle in the running direction is less than a specific value. A converting means M5 increases a specific value of the alarm means at least for a specific time, when the automatic operation is discriminated to be not adequate by the propriety discriminating means in the controlling condition of the automatic operation.
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公开(公告)号：JPH05170008A
公开(公告)日：1993-07-09
申请号：JP33519891
申请日：1991-12-18
Applicant: TOYOTA MOTOR CORP
Inventor： IWATA YASUNARI , SHIGEMATSU TAKASHI
IPC: B60K31/00 , B60K31/18 , B60W10/04 , B60W10/06 , B60W10/10 , B60W10/18 , B60W10/184 , B60W10/20 , B60W30/00 , B60W30/165 , F02D29/02 , G08G1/16
Abstract: PURPOSE:To make smooth follow-up travel by providing a travel control means which makes travel control on the basis of an amount of control operation quantity calculated by a control operation quantity calculation means for calculating the control operation quantity of a following vehicle, so as to travel in a manner to follow up with an immediately preceding vehicle. CONSTITUTION:An information transmission/reception means 11 receives information of another vehicle such as a control operation quantity, a travel state quantity, and vehicle data, and transmits it to a control operation quantity calculation means 12. The control operation quantity calculation means 12 calculates the control operation quantity on the basis of the information obtained from a detection means, a control means, etc., and transmits it to control devices 13, 14, 15, 16. These control devices make control on the basis of this control operation quantity so as to make a follow-up travel control of a following vehicle. The control operation quantity calculation means 12 also transmits contents of control to a display device provided within a vehicle interior, to inform the present vehicle control state to the driver. Further, in cases where the succeeding vehicle comes near to the preceding vehicle to a larger extent than required, or where fail occurs in the control means and detection means, an alarm- warning is given to the driver by a buzzer or a synthetic voice. A vehicle-to-vehicle distance detector is located on a front end portion of the vehicle to detect the distance between the preceding and succeeding vehicle.
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公开(公告)号：JPH02231611A
公开(公告)日：1990-09-13
申请号：JP5334989
申请日：1989-03-06
Applicant: TOYOTA MOTOR CORP
Inventor： SHIGEMATSU TAKASHI
IPC: G05D1/02
Abstract: PURPOSE:To attain an automatic vehicle operation approximate to a manual operation and also to ensure the satisfactory follow-up to the environmental change by operating the final manipulated variable of an actuator in consideration of the learning quantity. CONSTITUTION:A storage means 14 stores the position and the traveling state of a vehicle obtained via a position/state detection means 10 as well as the manipulated variable and the learning value obtained via an actuator manipulated variable detection means 12. As estimated error arithmetic means 16 inputs the information given from the means 14 and also the present vehicle information received from the means 10 and operates an estimated error to be produced at a position ahead the vehicle by a prescribed distance. A learning quantity arithmetic means 19 sends the learning quantity operated from the estimated error at the present time point back to the part 14 and stores the learning quantity there. An actuator manipulated variable arithmetic means 18 inputs the manipulated variables, the learning values, and the estimated errors of various actuators and feeds back the data stored in the means 14. At the same time, the manipulated variable of the actuator is corrected and outputted with addition of the learning quantity. Thus it is possible to attain an automatic vehicle operation approximate to a manual operation and to secure the satisfactory follow-up to the change of the frictional environment of the road surface.
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公开(公告)号：JPH02231609A
公开(公告)日：1990-09-13
申请号：JP5334789
申请日：1989-03-06
Applicant: TOYOTA MOTOR CORP
Inventor： SHIGEMATSU TAKASHI
IPC: G05D1/02
Abstract: PURPOSE:To attain the satisfactory automatic operations among different vehicles as well as an automatic vehicle operation approximate to a manual operation by correcting a vehicle driving error after estimating this error at a position ahead the vehicle by a prescribed distance. CONSTITUTION:In a teaching operation state, a teaching data storage means 14 stores the position and the driving state of a vehicle obtained by a position/ state detection means 10 and the information on the manipulated variable obtained via an actuator manipulated variable detection means 12. An estimated error arithmetic means 16 inputs the information received from the means 14 and also the information on the vehicle under operation given from the means 10 and operates an estimated error at a position ahead the vehicle by a prescribed distance. An actuator manipulated variable arithmetic means 18 inputs the manipulated variables of various actuators received from the means 14 and also the estimated error given from the means 16 and corrects the manipulated variable with the feedback applied to the teaching data to output the corrected manipulated variable. Thus an optimum course can be selected for each of different vehicles and an automatic vehicle operation similar to a manual operation can be satisfactorily applied.
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公开(公告)号：JPS6460475A
公开(公告)日：1989-03-07
申请号：JP21673087
申请日：1987-08-31
Applicant: TOYOTA MOTOR CORP
Inventor： SHIGEMATSU TAKASHI
IPC: B60T8/1755 , B60T8/24 , B62D6/00 , B62D7/14 , F02D29/00
Abstract: PURPOSE:To secure safe running by obtaining a limit cornering force from an actual cornering force and a target cornering force obtained from a speed, a vehicle acceleration and a yaw rate to change the operating condition of the vehicle within the range. CONSTITUTION:At the time of driving a vehicle, a target cornering force is calculated (202) from values of a steering angle and a speed using a three- dimensional map, and an actually applied actual cornering force is estimated (203) from the present operating conditions of the vehicle such as a speed, an acceleration and a yaw rate. Secondly, a difference between the above target cornering force and the actual cornering force is calculated (204), and then according to the difference, a limit cornering force is estimated (205). Subsequently, the limit cornering force is compared with the target cornering force, and when the latter is smaller than the former, the target driving force and the target steering angle to be finally achieved are calculated (210) to change the operating condition of the vehicle.
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Patent Agency Ranking
公开(公告)号：JPS63295931A
公开(公告)日：1988-12-02
申请号：JP21454087
申请日：1987-08-28
Applicant: TOYOTA MOTOR CORP
Inventor： SAWADA DAISAKU , SHIGEMATSU TAKASHI , TAKEDA YUJI
Abstract: PURPOSE:To enable automatic detection of a possible abnormality such as trouble in a knocking sensor with a simple construction, by arranging an integration circuit, a comparator circuit, an abnormality criterion level setting circuit and the like. CONSTITUTION:A signal outputted from an integration circuit 14 is inputted into a comparator circuit 15, which 15 compares a specified comparison signal from the circuit 14 with a reference signal preset inputted form an abnormality criterion level setting circuit 16 and when the output signal from the circuit 14 is smaller than the voltage output signal from the circuit 16, a signal is outputted from the circuit 15. The output signal from the circuit 15 is inputted into a switching circuit 2, which switches the position of connecting an output signal from a knocking discrimination circuit 13 to an increment/decrement counter 6 to input an output signal from a simulation signal generating circuit 17 into the counter 6. In this manner, in case of abnormality in a knocking sensor 8, an ignition timing shifts to the position preset at an angle delayed from an area normally used, thereby permitting avoidance of a trouble such as melting loss of a piston.
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公开(公告)号：JPS63162378A
公开(公告)日：1988-07-05
申请号：JP31376086
申请日：1986-12-24
Applicant: TOYOTA MOTOR CORP
Inventor： SHIGEMATSU TAKASHI , KIDO AKIHIKO , KAWAKAMI SEIJI , KOMODA NORIO , KUSUNOKI HIDEKI
IPC: B62D6/00 , B62D7/14 , B62D7/15 , B62D101/00 , B62D113/00 , B62D137/00
Abstract: PURPOSE:To control steering and the limiting thereof by running a simple program with a normal micro computer when abnormality has been detected in either of a first or a second micro computer for controlling an actuator for steering rear wheels and a steering limiting device. CONSTITUTION:In the device wherein an actuator 2b steers rear wheels via a relay rod 2a and the displacement of the relay rod 2a is limited with a steering limiting device 2c for restricting rear wheel steering, a speed sensor 3a and front and rear wheel steering angle sensors 3b and 3c are provided. Also, a condition detecting switch 3 is fitted for detecting the operating condition of the steering limiting device 2c. According to output from said detecting means 3a to 3d, the actuator 2b and the steering limiting device 2c are controlled via micro computers 4a and 4b. The micro computers 4a and 4b have a built-in abnormality detecting means 4a and 5a and when any abnormality has been detected therein, steering and the limiting thereof are controlled with a simple program executed in a normal micro computer 4a or 4b.
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公开(公告)号：JPS62250802A
公开(公告)日：1987-10-31
申请号：JP9191286
申请日：1986-04-21
Applicant: TOYOTA MOTOR CORP
Inventor： MORITA MAKOTO , SHIGEMATSU TAKASHI , NAKAMURA MASASHI
Abstract: PURPOSE:To obtain necessary set torque and enable motor loss to be minimized, by regulating both motor flux and torque current, and by controlling primary current. CONSTITUTION:By a torque arithmetic-unit 12, necessary set torque T* is performed arithmetic according to the running command and running conditions off car bodies. By an efficiency optimizing circuit 14, optimum motor flux phi*for minimum motor loss to obtain the necessary set torque T* based on the set torque T* and motor frequency fm is found, and after that, with magnet izing current to obtain the optimum motor flux phit*, transient motor flux phi*to a degree that the variation delay of motor flux does not exceed a specified value is performed arithmetic step by step, and according to the transient motor fluxphit*, transient torque current Iq' is performed arithmetic. By a vector arithmetic-circuit 16, motor voltage V1 and slip frequency fs are performed arithmetic according to the transient motor flux phit* and the transient torque current Iq' and the like.
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公开(公告)号：JPS62213503A
公开(公告)日：1987-09-19
申请号：JP5549386
申请日：1986-03-12
Applicant: TOYOTA MOTOR CORP
Inventor： NAKAMURA MASASHI , SHIGEMATSU TAKASHI , MORITA MAKOTO
Abstract: PURPOSE:To always reduce a motor loss to the minimum value in an electric vehicle by first calculating the optimum motor magnetic flux that the motor loss becomes minimum, and calculating a torque current for outputting a target torque in the optimum motor magnetic flux. CONSTITUTION:A torque calculator 12 calculates necessary target torque T on the basis of running command and conditions. An efficiency optimizing circuit 14 obtains a motor magnetic flux phi that the entire motor loss becomes minimum on the basis of magnetic flux/loss characteristic data from the torque T and a motor speed N (fm). Then, it obtains a necessary torque current IT from the obtained motor magnetic flux phi. When the magnetic flux phi and the current IT are determined, a motor voltage V1 and a motor primary frequency f1 are calculated by the vector control by a vector calculator 16, which supplies it to a PWM controller 18.
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公开(公告)号：JPS6246723A
公开(公告)日：1987-02-28
申请号：JP18773085
申请日：1985-08-26
Applicant: TOYOTA MOTOR CORP
Inventor： SHIGEMATSU TAKASHI
Abstract: PURPOSE:To facilitate hill start operation through simple structure by detecting the rotation of wheel under such stopping condition as can be started immediately through accelerating operation and regulating the transmission torque of automatic clutch not to rotate the wheel. CONSTITUTION:Output signals from rotary speed sensor 34, vehicle speed sensor 38, shift position sensor 42, acceleration pedal sensor 48 and brake pedal sensor 50 are fed to a controller 36 under operation of vehicle. The controller 36 will detector the rotation of wheel under stopping condition of vehicle where the shift level is not at the neutral position and the brake pedal or the accelerator pedal is not stepped. Transmission torque of automatic clutch 12 a magnetic powder electromagnetic clutch is regulated not to rotate the wheel. Consequently, the vehicle can be stopped on the hill while hill start can be facilitated.
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