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1. 发明专利

DE19946425A1 Drive force control system of vehicle, has allocation controller which increases or decreases compensation control of final target driving force based on output of vehicle run condition 未知
公开(公告)号：DE19946425A1
公开(公告)日：2000-05-18
申请号：DE19946425
申请日：1999-09-28
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , YOSHIDA YOSHIYUKI , IWAKI HIDEFUMI
IPC分类号： B60W10/04 , B60K16/00 , B60K28/16 , B60W10/06 , B60W10/10 , F02D11/10 , F02D29/02 , F02D41/02 , F02D41/04 , B60K26/00 , F02D35/00
摘要： An allocation controller (42) allocates target driving force (tTd) to engine torque controller and drive system controller based on accelerator opening and speed from target driving force map (40). Based on the output of vehicle running condition judging unit (41), the increase or decrease of compensation control of final target driving force (tTd') is performed.

2. 发明专利

DE3276253D1 DISTRIBUTION TYPE FUEL INJECTION PUMP 未知
公开(公告)号：DE3276253D1
公开(公告)日：1987-06-11
申请号：DE3276253
申请日：1982-08-17
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , HOSHI YOSHIKAZU
IPC分类号： F02M41/14 , F02M59/32 , F02M59/36
摘要： Herein disclosed is a distribution type fuel injection pump for distributing and pumping a fuel into a plurality of cylinders of an internal combustion engine. The fuel injection pump is constructed of a hydraulic head (14) formed with first and second fuel feed ports (28, 30), a rotor (16) fitted in the hydraulic head (14), and plungers (60) fitted in the end portion of the rotor (16) for effecting the pumping action in accordance with the rotations of the rotor (16). Separately of this rotor (16), moreover, there ist formed in the hydraulic head (14), for example, a pressure space in which a shuttle (70) is slidably fitted to partition the pressure chamber into first and second pressure chambers (72, 74). With the construction thus far described, the fuel, which has been introruded from the first fuel feed port (28) and compressed by the plungers (60), is guided into the first pressure chamber (72) of said pressure space in accordance with the rotations of the rotor (16), and the fuel, which is introduced into the second pressure chamber (74), is consecutively distributed and pumped into the respective engine chambers by the movements of said shuttle (70).

3. 发明专利

DE69835073T2 未知
公开(公告)号：DE69835073T2
公开(公告)日：2007-01-18
申请号：DE69835073
申请日：1998-12-18
申请人： NISSAN MOTOR , HITACHI LTD
发明人： OOSAKI SATORU , TAKANO YOSHIYA , YANO HIROFUMI
IPC分类号： B60T13/52 , B60W10/04 , B60T13/46 , B60T13/72 , B60T17/00 , B60T17/02 , B60W10/06 , B60W10/18 , B60W10/184 , F02D9/02 , F02D29/02 , F02D41/00 , F02D41/04 , F02D41/12
摘要： In order to provide a brake booster negative pressure controller which reduces deterioation in the fuel consumption due to operation for closing a throttle (505) to assure a brake booster (525) negative pressure while assuring the braking capability required according to driving conditions and can safely assure a braking capability even when a failure occurs in a negative pressure sensing system, said brake booster negative pressure controller comprises a brake booster (525) for assuring a master vac negative pressure by using a negative pressure of an engine (507), a throttle valve (505a) whose opening angle can be operated independently from the stroke of an accel pedal (540), and a brake operation sensing means (532), wherein the negative pressure controller has speed sensing means (542) and a means for closing the throttle valve (505a) by a pretendermined amount when the vehicle speed sensed by the vehicle speed sensing means (542) is equal to or higher than a pretendermined value and application of the brake is sended by the brake operating sensing means (532).

4. 发明专利

DE3850164T2 未知
公开(公告)号：DE3850164T2
公开(公告)日：1994-09-22
申请号：DE3850164
申请日：1988-03-31
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , HOSHI YOSHIKAZU
IPC分类号： G01D5/245 , H03M1/14 , H03M1/28 , H03M1/30 , H03M1/24 , G01D5/25
摘要： A measurement range is divided into a plurality of sections, a binary coded signal is generated at each division point, small section signals are generated at a predetermined interval between the binary coded signals, the binary coded signals are weighted by angles, and the small section signals are added or subtracted to or from the weighted signal to interpolate between two binary coded signals. Since the increment signals generated between the adjacent absolute signals is used as an interpolation signal between the absolute signals, the measurement accuracy is enhanced without increasing the number of elements for generating the absolute signals. The measured angle can be accurately read by adding or subtracting the increment signals to and from the weighted signal of the absolute signal.

5. 发明专利

DE69834773D1 未知
公开(公告)号：DE69834773D1
公开(公告)日：2006-07-20
申请号：DE69834773
申请日：1998-07-14
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , MATSUFUJI KOJI , ISHIKAWA TOHRU , TERANISHI TAKAO
IPC分类号： F02D41/38 , F02D41/02 , F02D41/04 , F02D41/06 , F02D41/12 , F02D41/14 , F02M37/00 , F02M51/02 , F02M69/00 , F02N19/00
摘要： A fuel pressure control apparatus for cylinder injection engine having a fuel injection valve (508) for injecting fuel into a cylinder of an engine, a pipe (542) for conducting the fuel to the fuel injection valve, a fuel pump (511) for supplying the fuel from a fuel supply system to the pipe, a fuel pressure regulator (513) for regulating the fuel pressure within the pipe by discharging the fuel from the pipe to the fuel supply system, and a control unit (515) for making feed-back control on the fuel pressure within the pipe by applying a control signal determined on the basis of an engine operation parameter to the fuel pressure regulator, wherein the fuel pressure regulator is controlled in a feed-forward manner by a predetermined control value so as to make better fuel pressure control at the time of start and when the fuel pressure transiently changes.

6. 发明专利

DE19640403A1 Control of motor vehicle IC engine with direct fuel injection 未知
公开(公告)号：DE19640403A1
公开(公告)日：1997-04-10
申请号：DE19640403
申请日：1996-09-30
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , FUJIEDA MAMORU , SHIMADA KOUSAKU
IPC分类号： F02P5/15 , F02B17/00 , F02B33/00 , F02D29/02 , F02D37/02 , F02D41/02 , F02D41/04 , F02D41/14 , F02D41/24 , F02D41/30 , F02D45/00
摘要： A device to control an IC engine with direct injection has means to inject fuel directly into a cylinder of an engine and means to control the intake air quantity that is sucked into the cylinder. An igniter ignites the air/fuel mixture in the cylinder. There are control means to control at least the fuel injection means, the intake air control means or the igniter. The device also contains means to ascertain the operating condition of the engine and several groups with control constants for storage of at least one constant, one data field or one table used in the control means, whereby according to an ascertained operating condition, one of the groups with control constants is chosen.

7. 发明专利

CA1272649A FUEL INJECTING APPARATUS FOR INTERNAL COMBUSTION ENGINE 未知
公开(公告)号：CA1272649A
公开(公告)日：1990-08-14
申请号：CA531055
申请日：1987-03-03
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , HOSHI YOSHIKAZU
IPC分类号： F02M69/00 , F02B75/18 , F02B75/22 , F02M35/10 , F02M35/116 , F02M69/46
摘要： A fuel injecting apparatus for an internal combustion engine, comprising a suction manifold and a throttle valve assembly connected to the suction manifold and provided with a fuel injector and a throttle valve. The plane of the opening of each branch pipe of the manifold is formed at a position receded downstream of a joining plane between the suction manifold and the throttle valve assembly to form space between the joining plane and the opening plane, and, at the same time, the branch pipes of the suction manifold are open at predetermined intervals around the central axis of the space which functions as part of a suction passage rotationally in the direction of the operating sequence of the integrated cylinders, whereby suction by each cylinder takes place consecutively in the same rotational direction in the space at the branch pipe inlets, and a swirl is generated at the space formed at the branch pipe inlets, thereby prompting the mixing of the fuel-air mixture and enabling uniform distribution of the mixture to each cylinder.

8. 发明专利

DE19640403B4 未知
公开(公告)号：DE19640403B4
公开(公告)日：2008-03-27
申请号：DE19640403
申请日：1996-09-30
申请人： HITACHI LTD
发明人： TAKANO YOSHIYA , FUJIEDA MAMORU , SHIMADA KOUSAKU
IPC分类号： F02D41/04 , F02P5/15 , F02B17/00 , F02B33/00 , F02D29/02 , F02D37/02 , F02D41/02 , F02D41/14 , F02D41/24 , F02D41/30 , F02D45/00

9. 发明专利

DE19645715C2 未知
公开(公告)号：DE19645715C2
公开(公告)日：2000-03-23
申请号：DE19645715
申请日：1996-11-06
申请人： HITACHI LTD
发明人： SHIMADA KOUSAKU , TAKANO YOSHIYA , NAGANO MASAMI
IPC分类号： F02D45/00 , F02D35/02 , F02D41/02 , F02D41/04 , F02D41/32 , F02D41/40
摘要： A control apparatus for a multi-cylinder engine of direct injection, is composed of a pressure change estimation part for estimating in advance the pressure in each cylinder, from the fuel injection start to the fuel injection end, a part for calculating the difference between the estimated pressure in the cylinder and the pressure of fuel, and a part for calculating a supposed decreased amount of injected fuel, caused by the decrease of the difference between the pressure in the cylinder and the pressure of fuel, in a compression stroke. A part for determining an additional fuel injection time interval to a base fuel injection time interval also determined by the control apparatus, compensates the supposed decreased amount of injected fuel.

10. 发明专利

DE19645715A1 Control device for directly fuel-injected petrol engines 未知
公开(公告)号：DE19645715A1
公开(公告)日：1997-05-07
申请号：DE19645715
申请日：1996-11-06
申请人： HITACHI LTD
发明人： SHIMADA KOUSAKU , TAKANO YOSHIYA , NAGANO MASAMI
IPC分类号： F02D45/00 , F02D35/02 , F02D41/02 , F02D41/04 , F02D41/32 , F02D41/40
摘要： The controller has a device which detects the air induced into each cylinder, a crankshaft angle measurement device, a fuel pressure generator, a choke flap position detector and a device (41) for setting the base fuel injection quantity according to the detected induction air flow. A base injection interval is set (43) for each injector according to the corresp. to the base injection quantity. Each ignition plug is controlled (45) to fire at a time determined by the controller. A control unit (15) repeats an injection time interval computation, during which it corrects the base interval to compensate for a decrease in the injected fuel quantity caused by a decrease in the difference between the pressure in each cylinder (7) and the fuel pressure depending on the approach to the upper top dead point during the compression stroke.

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