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1. 发明专利

JPH0822308A AUTOMOBILE CONTROLLER 失效
公开(公告)号：JPH0822308A
公开(公告)日：1996-01-23
申请号：JP15699294
申请日：1994-07-08
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： KAYANO MITSUO , KATAYAMA HIROSHI , WATABE MITSURU , ISHII JUNICHI , ICHIHASHI TETSUYA , SASAKI SHOJI
IPC分类号： B60R16/02 , B60R16/03 , G05B15/02
摘要： PURPOSE:To reduce the size of a control unit by switching circuits corresponding to a multiplexer and a sensor signal and changing circuits which match the sensor signal through software according to the sensor signal. CONSTITUTION:The sensor signal of a sensor 1 which outputs a signal showing the state of an automobile is inputted to a surge-proof circuit incorporated multiplexer 3 in the automobile control unit 2 and a selected signal is inputted to a programmable input signal matching module 5 incorporated in an I/O LSI 4 and matched; and control contents are determined by the I/O LSI 4 or a microcomputer 6 connected to the I/O LSI 4 and an actuator 7 for injection, etc., is controlled. The sensor signal inputted to the surge-proof circuit incorporated multiplexer 3 at this time is selected with the output signal from the I/O LSI 4, and a programmable input signal switching circuit in the programmable input signal matching in the I/O LS 14 is also switched in synchronism with the switching timing of the selection.

2. 发明专利

JPH0844406A CONTROLLING PROCESSOR AND ONE-CHIP MICROCOMPUTER 失效
公开(公告)号：JPH0844406A
公开(公告)日：1996-02-16
申请号：JP17512094
申请日：1994-07-27
申请人： HITACHI LTD , HITACHI CAR ENGINEERING KK
发明人： KATAYAMA HIROSHI , KAYANO MITSUO , WATABE MITSURU , ISHII JUNICHI , ICHIHASHI TETSUYA , SASAKI SHOJI , TANAKA SATOSHI
IPC分类号： F02D45/00 , F02D41/24 , F02D41/26 , F02P5/15 , F02P7/077 , G05B15/02 , G05B19/042 , G06F15/78
摘要： PURPOSE:To optionally and widely utilize a timer output function and to attain inexpensive constitution as a whole by providing a microcomputer with an output pattern generating circuit and a virtual OCR program. CONSTITUTION:The one-chip microcomputer 1 for controlling an engine 101 is constituted of a CPU 2, an A/D conversion means 4, a port means 8 for inputting/outputting a digital signal, a ROM 9 for storing a control program and a virtual OCR program for virtually extening a timer output, a RAM 10 for temporarily storing data, a timer 6 for generating a fixed period interruption, an interruption controller 3, and an output pattern generating circuit 5 to be driven while interlocking with a free running timer 7. The number of timer outputs can be flexibly changed by a program for attaining a virtual timer output. Consequently four to twelve cylinders or more can be controlled only by one microcomputer.

3. 发明专利

DE19527347B4 未知
公开(公告)号：DE19527347B4
公开(公告)日：2007-10-11
申请号：DE19527347
申请日：1995-07-26
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： KATAYAMA HIROSHI , KAYANO MITSUO , WATABE MITSURU , ISHII JUNICHI , ICHIHASHI TETSUYA , SASAKI SHOJI , TANAKA SATOSHI
IPC分类号： F02D45/00 , G05B19/042 , F02D41/24 , F02D41/26 , F02D43/00 , F02P5/15 , F02P7/077 , G05B15/02 , G06F1/04 , G06F15/78
摘要： A control processor has an output pattern generating circuit operating in cooperation with a free running timer, and a virtual OCR program for virtually realizing a large number of timer outputs by use of the output pattern generating circuit. Because more timer outputs than the actually incorporated timers are handled, the function of timer outputs is implemented with a higher degree of freedom and in a wider range of applications. For its enhanced function and availability, the control processor costs less.

4. 发明专利

GB2207779B ENGINE CONTROL SYSTEM USING LEARNING CONTROL 未知
公开(公告)号：GB2207779B
公开(公告)日：1991-10-02
申请号：GB8816203
申请日：1988-07-07
申请人： HITACHI LTD
发明人： SAKAMOTO MASAHIDE , ATAGO TAKESHI , ISHII JUNICHI , AMANO MATSUO , KURIHARA NOBUO
IPC分类号： F02B1/04 , F02D41/14 , F02D41/24
摘要： An engine control system is disclosed in which the air-fuel ratio is controlled by feedback in accordance with the oxygen concentration detected of the exhaust gas, and a feedback control system thereof separate learning compensation values for compensating for the changes of the input/output characteristics of an air flow meter and a fuel injector respectively. The engine control system comprises a device for detecting the engine intake air flow, a device for detecting the engine speed, a device for detecting the oxygen concentration of the exhaust gas, a device for calculating the error between actual and target air-fuel ratios from the oxygen concentration of the exhaust gas, a device for learning the changes in the input/output characteristics of the intake air flow, a detection device to determine a first compensation factor corresponding to the changes in the input/output characteristics thereof, a device for learning the changes in the input/output characteristics of the fuel injection device to determine a second compensation factor corresponding to the changes in the input/output characteristics thereof, a device for calculating a basic fuel injection amount from the first compensation factor, the engine speed and the intake air amount, a device for calculating a required fuel flow rate reducing the air-fuel ratio error from the basic fuel injection amount, the second compensation factor and the air-fuel ratio error, a device for generating a drive signal indicating the required fuel flow rate, and the device for injecting fuel into the intake air path in the engine in response to the drive signal indicating the required fuel flow rate.

5. 发明专利

DE4448003B4 未知
公开(公告)号：DE4448003B4
公开(公告)日：2009-08-27
申请号：DE4448003
申请日：1994-12-27
申请人： HITACHI LTD
发明人： MINOWA TOSHIMICHI , KURAGAKI SATOSHI , ISHII JUNICHI
IPC分类号： B60K28/10 , F02D45/00 , B60R16/02 , B60R16/023 , F02D29/02 , F02D35/00 , F02D41/02 , F02D41/14 , F02D41/24
摘要： A control device and a control method capable of eliminating a torque variation in changing an air/fuel ratio and establishing a compatibility of promotion in fuel economy with promotion in drivability is provided. The device includes an outer environment detector for detecting an outer environment in running a vehicle, a running environment determining device for predicting a current running environment in accordance with the outer environment, a data storage device for storing data for changing a driving characteristic, a selecting device for selecting the data, a control quantity calculator for calculating a control quantity based on the data, and a control actuator for controlling a control object. The engine output is efficiently utilized since the air/fuel ratio is changed in accordance with the change in the running environment, and the fuel cost reduction and the promotion of the drivability can be achieved since the selecting of the air/fuel ratio is performed in accordance with the running environment.

6. 发明专利

DE69333599D1 未知
公开(公告)号：DE69333599D1
公开(公告)日：2004-09-23
申请号：DE69333599
申请日：1993-09-16
申请人： HITACHI LTD
发明人： MINOWA TOSHIMICHI , KIMURA HIROSHI , ISHII JUNICHI , SHIRAISHI TAKASHI , OZAKI NAOYUKI
IPC分类号： B60W10/06 , B60W10/10 , B60W30/18 , F16H59/08 , F16H59/14 , F16H59/16 , F16H59/24 , F16H59/36 , F16H59/38 , F16H59/46 , F16H59/48 , F16H59/68 , F16H59/70 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/08 , B60K41/06
摘要： An axle torque estimating system for a vehicle having an engine and an output shaft and a torque converter connected to the output shaft of the engine provides a shift signal which indicates a shift change ratio of the automatic transmission mechanism. An input torque of the automatic transmission mechanism is detected and the start timing for an actual mechanical gear shift of the automatic transmission mechanism is recognised. From the recognition of the actual mechanical shift start timing, an undergoing shift change ratio from the actual mechanical shift start timing is determined in accordance with a change of the shift signal. A torque calculation is effected when the actual mechanical shift start timing is recognised by multiplying the undergoing shift change ratio by the input torque and the axle torque out of shifting is calculated when a shift change has been completed by multiplying the shift change ratio at this time by the input torque.

7. 发明专利

DE69332417T2 未知
公开(公告)号：DE69332417T2
公开(公告)日：2003-08-14
申请号：DE69332417
申请日：1993-09-16
申请人： HITACHI LTD
发明人： MINOWA TOSHIMICHI , ISHII JUNICHI , KIMURA HIROSHI , SHIRAISHI TAKASHI , OZAKI NAOYUKI
IPC分类号： B60W10/06 , B60W10/10 , B60W30/18 , F16H59/08 , F16H59/14 , F16H59/16 , F16H59/24 , F16H59/36 , F16H59/38 , F16H59/46 , F16H59/48 , F16H59/68 , F16H59/70 , F16H61/00 , F16H61/02 , F16H61/04 , F16H61/06 , F16H61/08 , B60K41/08
摘要： An axle torque estimating system for a vehicle having an engine and an output shaft and a torque converter connected to the output shaft of the engine provides a shift signal which indicates a shift change ratio of the automatic transmission mechanism. An input torque of the automatic transmission mechanism is detected and the start timing for an actual mechanical gear shift of the automatic transmission mechanism is recognised. From the recognition of the actual mechanical shift start timing, an undergoing shift change ratio from the actual mechanical shift start timing is determined in accordance with a change of the shift signal. A torque calculation is effected when the actual mechanical shift start timing is recognised by multiplying the undergoing shift change ratio by the input torque and the axle torque out of shifting is calculated when a shift change has been completed by multiplying the shift change ratio at this time by the input torque.

8. 发明专利

DE69432369D1 未知
公开(公告)号：DE69432369D1
公开(公告)日：2003-04-30
申请号：DE69432369
申请日：1994-07-14
申请人： HITACHI LTD
发明人： MINOWA TOSHIMICHI , ISHII JUNICHI , YOSHIDA YOSHIYUKI , MORINAGA SHIGEKI , KATAYAMA HIROSHI , KURATA KENICHIRO , KAYANO MITSUO
IPC分类号： B60W50/00 , F01N11/00 , F02D37/02 , F02D41/26 , G01R31/28 , G05B19/00 , G05B19/042 , G05D1/00 , G06F7/70 , G06F12/08 , G06F12/0802 , G06F19/00

9. 发明专利

DE69414322D1 未知
公开(公告)号：DE69414322D1
公开(公告)日：1998-12-10
申请号：DE69414322
申请日：1994-07-14
申请人： HITACHI LTD
发明人： MINOWA TOSHIMICHI , YOSHIDA YOSHIYUKI , ISHII JUNICHI , MORINAGA SHIGEKI , KATAYAMA HIROSHI , KAYANO MITSUO , KURATA KENICHIRO
IPC分类号： B60W50/00 , F01N11/00 , F02D37/02 , F02D41/26 , G01R31/28 , G05B19/00 , G05B19/042 , G05D1/00 , G06F7/70 , G06F12/08 , G06F12/0802 , G06F19/00

10. 发明专利

DE69031546T2 未知
公开(公告)号：DE69031546T2
公开(公告)日：1998-04-02
申请号：DE69031546
申请日：1990-03-12
申请人： HITACHI LTD
发明人： KURIHARA NOBUO , ISHII JUNICHI , KANEYASU MASAYOSHI
IPC分类号： F02D37/02 , F02D41/14 , F02D45/00 , F02P5/04 , F02P5/15
摘要： An engine control apparatus for shifting an ignition timing signal to an ignition coil (48) so that the engine produces optimum torque generates a pseudo random signal (26) which is preferably an M series signal and applies the pseudo random signal to a parameter of the engine having a noise frequency component such as the engine rotational speed y(t). The M series signal is a signal having a impulse type self correlation function. A mutual correlation function of the number of revolutions of the internal combustion engine and of the M series signal is computed (30-44) and an optimum ignition advance angle is supplied to an adder (46). The adder (46) combines the optimised signal ignition advance angle with a basic ignition timing signal ( theta advB) to provide an ignition timing signal ( theta ig) to the ignition coil (48).

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