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1. 发明专利

JPS6460462A ACCELERATING SLIP CONTROL DEVICE 失效
公开(公告)号：JPS6460462A
公开(公告)日：1989-03-07
申请号：JP21624487
申请日：1987-08-28
申请人： TOYOTA MOTOR CORP , NIPPON DENSO CO
发明人： MIYAZAKI YUJI , ASAMI KEN , MINEGISHI HARUMASA , ISE SEIKI , KAMIYA KOJI
IPC分类号： B60T8/175 , B60T8/58 , B60T8/92
摘要： PURPOSE:To enhance reliability at the time of abnormality by stopping the supply of driving energy to braking means when a control signal is output from slip control means for controlling braking means to decrease an accelerating slip for more than a designated time outside a control range. CONSTITUTION:When an accelerating slip occurs during acceleration of a vehicle, braking means M1 is controlled by slip control means M2 to brake driving wheels of the vehicle and decrease the accelerating slip. Supervisory means M3 for detecting that a control signal of the slip control means M2 is output for more than a designated time outside the control range is provided separately from the slip control means M2. When the supervisory means M3 detects that the slip control means M2 outputs a control signal to the braking means M1 for more than a designated time outside the control range, the supply of driving energy to the braking means M1 is stopped by stopping means M4.

2. 发明专利

JPH01257662A PRESSURE CONTROLLER FOR ACCUMULATOR OF BRAKE DEVICE 失效
公开(公告)号：JPH01257662A
公开(公告)日：1989-10-13
申请号：JP13598488
申请日：1988-06-02
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP
发明人： MAKINO NOBUHIKO , TAMURA KIMIO , MIYAZAKI YUJI , HOSODA TOMOHIKO , NAKAGAWA FUMIO
IPC分类号： B60T17/00 , B60T8/175 , B60T8/40 , B60T8/44 , B60T8/48 , B60T13/14 , B60T17/02 , B60T17/18
摘要： PURPOSE:To prevent deficiency of pressure P beforehand by driving a fluid pump when the pressure P of an accumulator is smaller, and detecting consumption conditions under which the pressure P is consumed before it becomes smaller than a specified level, thereby driving the pump. CONSTITUTION:In a device wherein pressure fluid discharged from a fluid pump A is once stored in an accumulator B and thereafter it is supplied to a brake unit D through a control valve means C, a pressure detecting means E for detecting the pressure of accumulator B, and the output signal is input to first and second drive control means F, G. A first drive signal is output from the means F to drive the pump A when the detected pressure is lower than the specified level. A second drive signal is output to drive the pump A after consumption conditions under which the pressure of accumulator is consumed are detected.

3. 发明专利

JP2000308215A CONTROL DEVICE OF ELECTRIC VEHICLE 失效
公开(公告)号：JP2000308215A
公开(公告)日：2000-11-02
申请号：JP10907099
申请日：1999-04-16
申请人： TOYOTA MOTOR CORP
发明人： MIYAZAKI YUJI
IPC分类号： B60L15/20 , H02P21/00 , H02P23/16 , H02P27/04 , H02P27/08
摘要： PROBLEM TO BE SOLVED: To avoid being influenced by the fluctuation of a motor revolution upon the motor control of an electric vehicle. SOLUTION: In the control device of an electric vehicle, revolutions (rotational speeds) of wheels 16 are detected by sensors 100 and 102 and supplied to a controller 42. The controller 42 calculates the target revolution of the motor based on the revolution of the wheels and controls an inverter 18 according to the target motor revolution to avoid the fluctuation of the motor revolution. If the revolution of the motor 10 is detected directly to obtain the target revolution, a low-pass filter processing, etc., are necessary for removing the fluctuating components, and an offset between the target value and actual value is produced. However, by using the revolution of the wheel with a large inertial moment, the low-pass filter processing, etc., become necessary, and the target motor revolution free of offsets can be obtained.

4. 发明专利

JPH0438258A SIMULATOR DEVICE 失效
公开(公告)号：JPH0438258A
公开(公告)日：1992-02-07
申请号：JP14212990
申请日：1990-05-30
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CORP
发明人： HASHIMOTO YOSHIKAZU , TADA TETSUYA , MIYAZAKI YUJI
IPC分类号： G01M17/007 , B60T8/00 , B60T8/172 , B60T8/90 , G01M17/00
摘要： PURPOSE:To inspect a controller efficiently and highly accurately in a state approximate to the actual use by compensating a false signal related to body motion of a first processing means on the basis of an operational result related to drive and transmission systems including an automatic transmission of a second processing means. CONSTITUTION:A false signal showing wheel speed and another false signal showing engine speed both are inputted into a controller 2 from a simulator device 1. If so, the controller 2 makes out a control signal to be outputted to load 12. At this time, a calculating part 84 calculates the extent of output torque, and a calculating part 85 calculates the torque being outputted out of a transmission in response to a setting gear position of an automatic transmission to be outputted from a calculating part 86, while a calculating part 87 calculates the extent of driving torque being distributed to each wheel. Then a calculating part 96 calculates the value of body acceleration from the sum total of four wheels on surface resistance F, while a calculating part 97 calculates a body speed on the basis of the body acceleration.

5. 发明专利

JPH0438257A SIMULATOR DEVICE 失效
公开(公告)号：JPH0438257A
公开(公告)日：1992-02-07
申请号：JP14212890
申请日：1990-05-30
申请人： FUJITSU TEN LTD , TOYOTA MOTOR CORP
发明人： HASHIMOTO YOSHIKAZU , TADA TETSUYA , MIYAZAKI YUJI
IPC分类号： G01M17/007 , B60T8/00 , B60T8/172 , B60T8/1761 , B60T8/1766 , G01M17/00
摘要： PURPOSE:To perform a simulation in a slope so easily as well as to carry out the inspection of a controller efficiently in a highly accurate manner by compensating a false signal related to body motion of a first processing means on the basis of an operational result related to gravitational acceleration by a surface grade of a second processing means. CONSTITUTION:A false signal showing a wheel speed is inputted into a controller 2 from a simulator device. If so, the controller 2 makes out a solenoid control signal to be outputted to load 12, inputting this signal into a brake pressure calculating part 81 in the simulator device 1. At this time, a calculating part 85 calculates a slip factor between a wheel and a road surface from both wheel and body speeds. In addition, a calculating part 86 calculates a friction factor between the wheel and the road surface from the slip factor, and also calculates surface resistance from the friction factor and car weight. Moreover, a calculating part 87 calculates a surface torque from the surface resistance. On the other hand, a calculating part 88 calculates the extent of body acceleration from acceleration by the effect of a road grade from a calculating part 89 and the sum total of four wheels on the surface resistance. A calculating part 90 calculates a body speed on the basis of the body acceleration.

6. 发明专利

JPH0381543A EMERGENT DECREASE METHOD FOR ENGINE OUTPUT OF VEHICLE 失效
公开(公告)号：JPH0381543A
公开(公告)日：1991-04-05
申请号：JP21708289
申请日：1989-08-23
申请人： TOYOTA MOTOR CORP
发明人： TADA TETSUYA , NAKATOMI TAKAYOSHI , MIYAZAKI YUJI , HAYASHI KUNIHISA
IPC分类号： F02D41/04 , F02D29/02 , F02D43/00
摘要： PURPOSE:To prevent application of overvoltage on a spark ignition device by providing a cut-off means of fuel supply to an engine for emergently decreasing engine output, and providing a throttle opening decreasing means with an electronic device actuated prior to fuel cut. CONSTITUTION:An intake passage 30 is provided with a main throttle valve 36 opened or closed according to a step-in quantity of an accel pedal 38, and a sub-throttle valve 42 controlled to open or close with an electronic control device 46. A fuel injector 34 has its valve opening timing and valve opening duration controlled by a control signal from a fuel injection control device 40, basically controlled according to an intake air quantity. When fuel supply is cut off for emergent decrease of engine output, the throttle opening of the valve 42 is automatically decreased with the control device 46 prior to fuel cut, and hereafter fuel is cut. Therefore, after air pressure in the engine cylinder largely decreases, fuel is cut off, and voltage rise generated in a spark ignition device is cancelled.

7. 发明专利

JPS6460465A BRAKING FORCE CONTROL DEVICE 失效
公开(公告)号：JPS6460465A
公开(公告)日：1989-03-07
申请号：JP21624087
申请日：1987-08-28
申请人： TOYOTA MOTOR CORP
发明人： SUZUKI TOMOKIYO , ASAMI KEN , MIYAZAKI YUJI
IPC分类号： B60T8/58 , B60T8/175 , B60T8/1761
摘要： PURPOSE:To secure safety in relay contact welding or the like by applying an electric current to a directional control valve for increasing or decreasing and holding braking oil pressure through the first relay contact, and connecting the second relay contact in series to the first relay contact to control the supply of an electric current to a motor-driven pump through both contacts. CONSTITUTION:In a device for increasing or decreasing and holding braking oil pressure by controlling the supply of an electric current to a directional control valve 46 interposed in a braking oil pipe, a directional control valve relay 71, a motor relay 72 and a transistor TR for controlling the directional control valve are connected to an output port 67 of an electronic control device 18. The operation of the directional control valve 46 and a motor-driven pump 50 is controlled through the contacts 71a, 72a of the respective relays 71, 72 and the transistor TR. At this time, a solenoid coil SC of the directional control valve 46 has one terminal connected to a power supply line VB through the contact 71a and the other terminal earthed through a collector emitter of the transistor TR. The motor-driven pump 50 is connected to the power supply line VB through the contact 71a in addition to the contact 71a.

8. 发明专利

JPS63219465A UPHILL DETECTING DEVICE FOR VEHICLE 失效
公开(公告)号：JPS63219465A
公开(公告)日：1988-09-13
申请号：JP5508087
申请日：1987-03-10
申请人： TOYOTA MOTOR CORP
发明人： ISE SEIKI , MATSUMOTO SHINICHI , MIYAZAKI YUJI
IPC分类号： B60T8/58 , B60T8/175 , B60T8/1761
摘要： PURPOSE:To make it possible to detect the uphill road accurately by comparing the detected result of the car body speed in a specific period at the initial vihicle starting and a present value, and deciding to be an uphill road when the detected result is less than the threshold value. CONSTITUTION:When the accelerator pedal 18 is depressed, the car body speed is computed to be the average of the rotation speeds of the right side and the left side wheels, in a control unit 60 to which output signals of the left side and the right side front wheel speed sensors 66 and 68, and a rear wheel speed sensor 70 are input, and, the rotation speed and rotation accelerating speed of the rear wheels, which are the driving wheels, are also computed. And when the rear wheels are decided to be in an acceleration slip condition, a direction control valve 56 and a flow control valve 58 are controlled to operate rear wheel brakes 38 and 40 to suppress the rotation of the rear wheels. In such a starting control condition, the car body speed and a set value are compared, and when the car body speed is less than the set value, the running road is decided to be an uphill road, and after that, the rear wheel brakes 38 and 40 are controlled by using uphill pressure switching mode table.

9. 发明专利

JPS63113131A CAR SLIP CONTROL DEVICE 失效
公开(公告)号：JPS63113131A
公开(公告)日：1988-05-18
申请号：JP25928886
申请日：1986-10-30
申请人： TOYOTA MOTOR CORP
发明人： MIYAZAKI YUJI , ISE SEIKI , MATSUMOTO SHINICHI
IPC分类号： B60K28/16 , B60W10/02 , B60W10/04 , B60W10/06 , B60W10/10 , B60W10/18 , F02D29/00 , F02D29/02 , F02D41/00 , F02D41/22
摘要： PURPOSE:To prevent deceleration shock due to slip control by setting an opening of a throttle valve at a magnitude obtained through subtraction of a specified amount from the maximum opening of the throttle valve for a specified period of time from the time when the rotating acceleration of a combustion engine remains below a specified value and the rotating acceleration of a driving wheel becomes above a specified value. CONSTITUTION:An opening correcting means M12 judges that the upshift is completely carried out by an automatic change gear M3 when the rotating acceleration of a combustion engine M1 calculated by an engine acceleration calculating means 10 remains below a specified value and the rotating acceleration of a driving wheel M2 calculated by a driving wheel calculating means M11 becomes above a specified value. For a specified period of time, an opening of a throttle valve M6 driven by a control means M7 is set at a magnitude obtained by subtracting a specified amount from the maximum opening of the throttle valve M6 memorized by an opening memory means M9. Thus, the deceleration shock can be prevented by setting the opening of the throttle valve M6 at a magnitude obtained by subtracting a specified value from the maximum opening directly before abrupt reduction caused by a peak of driving wheel speed.

10. 发明专利

JPS623137A ACCELERATION SLIP CONTROLLER 失效
公开(公告)号：JPS623137A
公开(公告)日：1987-01-09
申请号：JP14284685
申请日：1985-06-29
申请人： TOYOTA MOTOR CORP
发明人： MIYAZAKI YUJI , INAGAKI TAKAFUMI
IPC分类号： B60K28/16 , B60W10/04 , B60W10/06 , B60W10/18 , B60W10/184 , F02D9/02 , F02D29/02 , F02D41/00 , F02D41/04 , F02D41/22
摘要： PURPOSE:To achieve the optimal acceleration slip control at any time by calculating the friction factor of pavement and the slippage of drive wheel then correcting the driving force to be determined on the basis of said friction factor with correspondence to the difference between said slippage and the target slippage. CONSTITUTION:On the basis of the driving wheel slippage calculated through a calculating means M1 on the basis of the body speed and the circumferential speed of driving wheel, the rotation of a driving wheel M2 is controlled through a control means M3 such that the frictional force between the driving wheel M2 and the pavement will increase under acceleration. Here, the control means M3 is constructed such that it will calculate the friction factor M5 of pavement on the basis of the output from a body acceleration detecting means M4 and to calculate the maximum transmittable driving force M6 of the driving wheel M2 on the basis of said pavement friction factor. While it is constructed such that the maximum driving force is corrected M7 in correspondence with the difference between the driving wheel slippage and the target slippage to control a driving force regulating means M8 thus to transmit the maximum corrected driving force to the driving wheel M2.

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