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1. 发明专利

DE69420418T2 未知
公开(公告)号：DE69420418T2
公开(公告)日：2000-05-25
申请号：DE69420418
申请日：1994-11-29
申请人： ZANAVY INFORMATICS KK , HITACHI LTD
发明人： HOSHINO MASATOSHI , OHO SHIGERU , GUNJI YASUHIRO , KURODA HIROSHI , TAKANO KENJI , NAGASHIMA YOSHIMASA , ONARI MIKIHIKO
IPC分类号： G01C21/16 , G01C21/28 , G01S19/49 , H01Q1/12 , G01C21/20
摘要： A navigation system which can enhance the position determining accuracy of a mobile object without employing any high precision measuring instrument. The navigation system comprises a GPS range measuring device (101 in Fig. 1), an angular velocity measuring device (102), a velocity measuring device (103) and an azimuth measuring device (104), which measure the motion of the mobile object; a GPS range error estimating device (105), an angular velocity error estimating device (106), a velocity, error estimating device (107) and an azimuth error estimating device (108), which estimate errors involved in the respectively corresponding measuring devices; and a position calculating device (109) which calculates the position of the mobile object from the outputs of the error estimating devices. The error estimating devices are implemented by Kalman filters and averaging processes. The factors of the errors of the individual measuring devices are assumed, and the outputs thereof are corrected, so that the position of the mobile object can always be determined at a high accuracy without employing any high precision sensor.

2. 发明专利

DE69420418D1 未知
公开(公告)号：DE69420418D1
公开(公告)日：1999-10-07
申请号：DE69420418
申请日：1994-11-29
申请人： ZANAVY INFORMATICS KK , HITACHI LTD
发明人： HOSHINO MASATOSHI , OHO SHIGERU , GUNJI YASUHIRO , KURODA HIROSHI , TAKANO KENJI , NAGASHIMA YOSHIMASA , ONARI MIKIHIKO
IPC分类号： G01C21/16 , G01C21/28 , G01S19/49 , H01Q1/12 , G01C21/20
摘要： A navigation system which can enhance the position determining accuracy of a mobile object without employing any high precision measuring instrument. The navigation system comprises a GPS range measuring device (101 in Fig. 1), an angular velocity measuring device (102), a velocity measuring device (103) and an azimuth measuring device (104), which measure the motion of the mobile object; a GPS range error estimating device (105), an angular velocity error estimating device (106), a velocity, error estimating device (107) and an azimuth error estimating device (108), which estimate errors involved in the respectively corresponding measuring devices; and a position calculating device (109) which calculates the position of the mobile object from the outputs of the error estimating devices. The error estimating devices are implemented by Kalman filters and averaging processes. The factors of the errors of the individual measuring devices are assumed, and the outputs thereof are corrected, so that the position of the mobile object can always be determined at a high accuracy without employing any high precision sensor.

3. 发明专利

DE3603336C3 未知
公开(公告)号：DE3603336C3
公开(公告)日：1997-06-05
申请号：DE3603336
申请日：1986-02-04
申请人： HITACHI LTD
发明人： KOKAWA MASASUMI , ONARI MIKIHIKO , SASAKI RYOICHI
IPC分类号： G05B13/00 , G05B13/02 , G06F9/44 , G06N5/04 , G21D3/00
摘要： An analogical inference apparatus for control system is disclosed in which, in order to be able to generate a control signal to a system, which is to be controlled, even when conditions to be premised are unknown, the degree of similarity between the detected control signal from a sensor incorporated in the system and one of the predetermined control conditions stored in a memory is estimated by estimation means, and then a control value is inferred in accordance with the result of the estimation.

4. 发明专利

DE3767217D1 未知
公开(公告)号：DE3767217D1
公开(公告)日：1991-02-14
申请号：DE3767217
申请日：1987-05-29
申请人： HITACHI LTD
发明人： SEKOZAWA TERUJI , SHIOYA MAKOTO , FUNABASHI MOTOHISA , ONARI MIKIHIKO
IPC分类号： F02D41/14 , F02D11/10 , F02D41/00 , F02D41/10 , F02D43/00 , F02P5/04 , F02P5/145 , F02P5/15
摘要： A system and a method for electronically controlling an internal combustion engine of a vehicle is disclosed which is of the kind electrically controlling the opening of a throttle valve (20) controlling the quantity of intake air supplied to the engine. The electronic engine control system includes means (211) setting a target acceleration (ACCO) of the vehicle according to an amount of depression of an accelerator pedal (22) by the driver means, comparing the target acceleration (ACCO) with an actual acceleration (ACC) of the vehicle to find a deviation ( DELTA ACC) therebetween and means (212), setting a target value of the throttle valve opening on the basis of the acceleration deviation ( DELTA ACC), and controlling the throttle valve opening until it attains the target value (ACCO).

5. 发明专利

DE3876036T2 未知
公开(公告)号：DE3876036T2
公开(公告)日：1993-03-25
申请号：DE3876036
申请日：1988-08-19
申请人： HITACHI LTD
发明人： ONARI MIKIHIKO , FUNABASHI MOTOHISA , SEKOZAWA TERUJI , SHIOYA MAKOTO
IPC分类号： B60W10/06 , B60W10/10 , B60W30/18 , B60W40/08 , B60W50/00 , F02D11/10 , F02D41/02 , F02D41/26 , F16H59/08 , F16H61/00 , B60K41/00
摘要： An electronic engine control apparatus includes: a plurality of first sensors (1 - 8) for detecting the driving action taken in accordance with a driver's intent; a plurality of second sensors (4, 9, 12, 13) for detecting the operating conditions of a vehicle and an engine; a plurality of actuators (14, 15) for controlling the engine; a unit (10) for discriminating the driver's intent of how to drive the vehicle based on output signals from the first and second sensors; and a unit (10) for controlling the engine to match the driver's intent by selectively adjusting at least one of the actuators, in accordance with the discriminated driver's intent.

6. 发明专利

GB2191023B CONDITION ADAPTIVE-TYPE CONTROL METHOD FOR INTERNAL COMBUSTION ENGINES 未知
公开(公告)号：GB2191023B
公开(公告)日：1991-01-16
申请号：GB8710842
申请日：1987-05-07
申请人： HITACHI LTD
发明人： ONARI MIKIHIKO , SEKOZAWA TERUJI , FUNABASHI MOTOHISA , ATAGO TAKESHI
IPC分类号： F02D29/02 , B60K26/00 , B60K31/00 , B60K31/04 , B60W40/09 , B60W50/00 , F02D41/04 , F02D41/14 , F02D41/26 , F02D45/00 , G07C5/08
摘要： To perform the proper control conforming to the intent of a driver of an automotive vehicle under any condition which is encountered by the vehicle, optimum control methods are preliminarily classified in accordance with categories relating to conditions of the vehicle and categories relating to intents of the driver and the classified optimum control methods are stored in a memory, thereby selecting one of the control methods corresponding to the combination of the categories to which the vehicle condition and the driver's intent detected during the running of the vehicle belong.

7. 发明专利

DE3481329D1 未知
公开(公告)号：DE3481329D1
公开(公告)日：1990-03-15
申请号：DE3481329
申请日：1984-08-06
申请人： HITACHI LTD
发明人： SEKOZAWA TERUJI , SHIOYA MAKOTO , TOKUDA HIROATSU , FUNABASHI MOTOHISA , ONARI MIKIHIKO
IPC分类号： F02D41/34 , F02D41/00 , F02D41/04 , F02D41/14
摘要： A method of controlling the quantity of fuel to be injected into an intake manifold (2) for an engine (1) by a fuel injection unit (5) comprising the steps of identifying parameters indicative of a change in the dynamic characteristic of the fuel supply system due to changes in the environmental conditions including the atmospheric pressure and engine temperature, estimating the quantity of fuel to be supplied to the engine cylinder on the basis of the identified parameters, and controlling the quantity of fuel to be injected so that the ratio between the measured quantity of air supplied to the engine cylinder and the estimated quantity of fuel supplied to the engine cylinder attains the desired air-fuel ratio.

8. 发明专利

DE3575331D1 未知
公开(公告)号：DE3575331D1
公开(公告)日：1990-02-15
申请号：DE3575331
申请日：1985-10-01
申请人： HITACHI LTD
发明人： SEKOZAWA TERUJI , SHIOYA MAKOTO , FUNABASHI MOTOHISA , ONARI MIKIHIKO , SHIDA MASAMI
IPC分类号： F02D41/00 , F02D41/04 , F02D41/14 , F02D41/34 , F02D41/10 , F02D41/26
摘要： The fuel injection quantity required for maintaining the air-fuel ratio of the mixture supplied to each cylinder of an engine (10) at a desired value is determined by calculating from sensor data a deposition rate X at which injected fuel deposits and forms film mass on an intake manifold wall (21) of the engine and a vaporization rate 1/ tau at which the film mass vaporizes from the manifold wall, calculating a current film mass quantity Mf from the calculated X and 1/ tau and the fuel quantity by the preceding injection, calculating a desired fuel quantity Qa/(A/F) to be supplied to the cylinder from an intake air flow Qa and a desired air-fuel ratio A/F and determining a current fuel injection quantity Gf from the calculation results in accordance with the following equation Also, an accurate film mass quantity estimation is accomplished by subtracting a calculated value of a carry-over fuel quantity to be delivered to the cylinder from the film mass quantity estimated during the preceding period and adding a calculated value of a wall deposition fuel quantity per period obtained on the basis of an actual fuel injection quantity per stroke of the engine to the remaining film mass quantity thereby estimating a current film mass quantity.

9. 发明专利

DE3876036D1 未知
公开(公告)号：DE3876036D1
公开(公告)日：1992-12-24
申请号：DE3876036
申请日：1988-08-19
申请人： HITACHI LTD
发明人： ONARI MIKIHIKO , FUNABASHI MOTOHISA , SEKOZAWA TERUJI , SHIOYA MAKOTO
IPC分类号： B60W10/06 , B60W10/10 , B60W30/18 , B60W40/08 , B60W50/00 , F02D11/10 , F02D41/02 , F02D41/26 , F16H59/08 , F16H61/00 , B60K41/00
摘要： An electronic engine control apparatus includes: a plurality of first sensors (1 - 8) for detecting the driving action taken in accordance with a driver's intent; a plurality of second sensors (4, 9, 12, 13) for detecting the operating conditions of a vehicle and an engine; a plurality of actuators (14, 15) for controlling the engine; a unit (10) for discriminating the driver's intent of how to drive the vehicle based on output signals from the first and second sensors; and a unit (10) for controlling the engine to match the driver's intent by selectively adjusting at least one of the actuators, in accordance with the discriminated driver's intent.

10. 发明专利

DE3874585D1 未知
公开(公告)号：DE3874585D1
公开(公告)日：1992-10-22
申请号：DE3874585
申请日：1988-04-07
申请人： HITACHI LTD
发明人： FUNABASHI MOTOHISA , SEKOZAWA TERUJI , SHIOYA MAKOTO , ONARI MIKIHIKO , TAKAHASHI SHINSUKE , OKAZAKI GOHKI
IPC分类号： F02B75/02 , F02D11/10 , F02D41/00 , F02D41/04 , F02D41/14 , F02D41/18 , F02D41/10
摘要： In a fuel supply control method of an automobile engine wherein a plurality of parameters representing an operating condition of the engine are measured, and a fuel supply quantity (Gf) is determined based on the measured values so as to attain a target air-fuel ratio (A/F), an amount of air flowing (Qin) into each cylinder in an n-th stroke (n is an arbitrary integer) is calculated for prediction by using the measured parameters in a stroke preceding the n-th stroke, and the fule supply quantity is determined by the predicted value of the amount of air in the n-th stroke and a target value of the air-fuel ratio in the n-th stroke.

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