公开(公告)号：DE19655384B4

公开(公告)日：2009-07-09

申请号：DE19655384

申请日：1996-05-24

Applicant: HITACHI LTD

Inventor： MINOWA TOSHIMICHI ,  KURODA HIROSHI ,  KURAGAKI SATORU ,  KURATA KENICHIROU ,  OCHI TATSUYA

IPC: B60K28/10 ,  B60R21/00 ,  B60K28/14 ,  B60K31/00 ,  B60T7/12 ,  B60T8/174 ,  B60T13/66 ,  B60W10/00 ,  B60W10/04 ,  B60W10/06 ,  B60W10/10 ,  B60W10/18 ,  B60W10/184 ,  B60W30/00 ,  B60W30/08 ,  B60W40/02 ,  B60W40/06 ,  B60W40/072 ,  B60W40/076 ,  B60W40/10 ,  B60W40/107 ,  F02D9/10 ,  F02D29/02 ,  F16H61/18 ,  F16H63/50 ,  G01S13/93

Abstract: The vehicle power train control method and apparatus according to the invention secures both operability and safety by controlling an actual acceleration/deceleration to a target acceleration/deceleration requested by a driver under safe traveling condition, and changing the target acceleration/deceleration so as to take precedence for safe traveling if the driver encounters a dangerous traveling condition. According to the invention, acceleration/deceleration and speed of a motor vehicle are detected; a target acceleration/deceleration is determined; and a road condition such as a road gradient or presence or absence of a forward motor vehicle is detected to decide whether the road condition is dangerous. The target acceleration is changed if the condition is decided to be dangerous.

公开(公告)号：DE69739064D1

公开(公告)日：2008-12-04

申请号：DE69739064

申请日：1997-12-01

Applicant: HITACHI LTD

Inventor： KURODA HIROSHI ,  TAKENAGA HIROSHI ,  KURAGAKI SATORU ,  KAYANO MITSUO ,  MINOWA TOSHIMICHI ,  TAKANO KAZUAKI

IPC: B60K31/00 ,  B60T7/12 ,  B60T7/22 ,  F02D29/02 ,  F16H59/60 ,  F16H61/02 ,  G01S13/93 ,  G08G1/16

Abstract: The invention relates to a vehicle speed control apparatus for allowing a host vehicle (1) trailing a preceding vehicle (2) to accelerate and decelerate without causing discomfort to the host vehicle driver. While the host vehicle (1) is trailing the preceding vehicle (2), the apparatus on board the host vehicle (1) stores the speed of the preceding vehicle (2) entering a curve ahead as well as a headway distance of the host vehicle (1) to the preceding vehicle (2). Upon reaching the curve, the host vehicle (1) is controlled by the apparatus to enter the curve at a speed not in excess of the stored speed of the preceding vehicle (2).

公开(公告)号：DE69938517D1

公开(公告)日：2008-05-29

申请号：DE69938517

申请日：1999-01-18

Applicant: HITACHI LTD

Inventor： KURAGAKI SATORU ,  KAYANO MITSUO ,  MINOWA TOSHIMICHI ,  KURODA HIROSHI ,  ENDO YOSHINORI ,  NAKAMURA KOZO ,  TAKANO KAZUAKI

IPC: B60K31/00 ,  B60W30/00 ,  B60W30/16 ,  F02D29/02 ,  G01S13/34 ,  G01S13/58 ,  G01S13/60 ,  G01S13/93 ,  G05D13/62 ,  G08G1/16

Abstract: In a vehicle running control apparatus and method, the change of a difference in frequency between an electromagnetic wave signal transmitted from a vehicle (A) and an electromagnetic wave signal reflected from an object (B) is detected (301). Information inclusive of a distance (Dm) between the object and the vehicle and a relative speed (Vr) of one of the object and the vehicle to the other is generated (205, 210) on the basis of the change in frequency difference. A desired speed (Vd, DELTA Vd) is generated (405, 503) on the basis of the generated information and information (Vo) of the running of the vehicle so that the change in frequency difference is generated. A signal for control of the speed (Vo) of the vehicle is generated (209) on the basis of the desired speed.

公开(公告)号：DE60129654D1

公开(公告)日：2007-09-13

申请号：DE60129654

申请日：2001-11-08

Applicant: HITACHI LTD

Inventor： OKADA TAKASHI ,  MINOWA TOSHIMICHI ,  KAYANO MITSUO ,  OCHI TATSUYA ,  SAKAMOTO HIROSHI ,  KUROIWA HIROSHI ,  OZAKI NAOYUKI

IPC: F16H3/083 ,  F16H3/12 ,  B60K17/00 ,  F16H3/089 ,  F16H3/091 ,  F16H61/04 ,  F16H63/20

Abstract: An automatic transmission has a first axis (input axis) (102) for inputting the power, a second axis (output axis or counter axis) (103) for outputting the driving force source, at least one or more first gear group which consists of drive gears (111, 112) fixed on the first axis, and a driven gear (122) provided so as to engage or run idle with respect to the second axis with being engaged with the drive gear, and at least one or more second gear group which consists of driven gears (123, 124, 125) fixed on the second axis, and a drive gear (114, 115) provided so as to engage or run idle with respect to the first axis with being engaged with the driven gear. The automatic transmission further comprises a torque transferring mechanism (140) for transferring the torque between said driven gear which can run idle with respect to the second axis and the driven gear fixed to the second axis.

公开(公告)号：DE19956091B4

公开(公告)日：2007-07-05

申请号：DE19956091

申请日：1999-11-22

Applicant: HITACHI LTD

Inventor： OCHI TATSUYA ,  MINOWA TOSHIMICHI

IPC: F16H61/04 ,  F16H61/00 ,  F16H61/06 ,  F16H61/08

Abstract: In a control unit of an automotive vehicle, it is possible to securely prevent a tie-up due to a miss-recognition of a disengage timing of a disengage side friction device, securely prevent an early disengage due to an erroneous recognition of the disengage timing and realize a control of accurately and reliably shifting the clutch. Accordingly, a control unit of an automatic transmission having pressure adjusting command generating means which executes a shift by engaging and disengaging a predetermined friction device in an automatic transmission connected to an engine and adjusts a hydraulic pressure acting on the friction device at a time of the shift is structured such as to have disengage timing recognizing means which recognizes a disengage timing of a disengage side friction device at a time of shifting the automatic transmission, first disengage determining means which determines a disengage operation of the disengage side friction device on the basis of a result of recognition by the disengage timing recognizing means and second disengage determining means which forcibly determines a disengage operation of the disengage side friction device in the case that it is impossible to recognize the disengage timing in the disengage timing recognizing means. In this control unit, the pressure adjusting command generating means operates so as to disengage the disengage side friction device on the basis of determination of the first and second disengage determining means.

公开(公告)号：DE60123017T2

公开(公告)日：2007-02-22

申请号：DE60123017

申请日：2001-09-19

Applicant: HITACHI LTD

Inventor： KOJIMA TAKAO ,  SATOU KAZUHIKO ,  MINOWA TOSHIMICHI ,  KURAGAKI SATORU ,  YOSHIKAWA TOKUJI

IPC: B60K26/02 ,  B60T7/04 ,  B60T7/02 ,  B60T7/06 ,  F02D11/02 ,  G05G1/30 ,  G05G1/44 ,  G05G1/60

Abstract: The invention relates to a pedal apparatus for vehicles, which comprises a pedal reaction-force addition means (4) for adding a reaction force to a pedal (1) of a vehicle, a pedal force detection means (2) for detecting a force added to the pedal, a pedal reaction-force control menas (3) for adjusting the output of the pedal reaction-force addition means. During the running of the vehicle, the pedal reaction-force control means (3) performs the adjustment of a reaction force of the pedal (1) on the basis of the driving environment of the vehicle and the driver's intention and judgment in pedal operation in the driving environment, whereby it is ensured that when the driver has no intention of operating the pedal (1), the driver can sufficiently place his of her foot on the pedal (1) and that when the driver has any intention of operating the pedal (1), the driver can realize a smooth pedal operation.

公开(公告)号：DE4245044B4

公开(公告)日：2007-01-25

申请号：DE4245044

申请日：1992-05-14

Applicant: HITACHI LTD

Inventor： OHSUGA MINORU ,  MINOWA TOSHIMICHI ,  KURIHARA NOBUO ,  OHYAMA YOSHISHIGE

IPC: F02D41/14 ,  F01N9/00 ,  F02D41/40

Abstract: Exhaust gas concn. monitor for use in a catalytic purifier for i.c. engine exhaust gas has units for regulating the concn. of numerous exhaust gas components to predetermined values, to maximise the purifcn. efficiency of the catalyst (I). (I) is a Cu ion exchanged zeolite catalyst. The concn. ratio of the components is also regulated to a predetermined value. The concns. are regulated by monitoring the air-fuel ratio and/or regulating or measuring the concn. of at least one of the exhaust gas components, with the engine already running.

公开(公告)号：DE60114320T2

公开(公告)日：2006-07-13

申请号：DE60114320

申请日：2001-08-07

Applicant: HITACHI LTD

Inventor： KOJIMA TAKAO ,  MINOWA TOSHIMICHI ,  KURAGAKI SATORU ,  SATOU KAZUHIKO ,  YOSHIKAWA TOKUJI

IPC: B60T7/06 ,  G05G1/42 ,  G05G1/487 ,  G05G1/60 ,  G05G5/03

Abstract: Pedal device 10 has a pedal member 11 depressed by the driver, and arm member 12 engaged with the pedal member, for turning when the pedal member is depressed, and transmitting driver's force-on-pedal to the brake master cylinder. When the driver's force-on-pedal which acts on pedal member 11 is less than the fixed value, footrest means 13 restricts the turning of the arm member. Pedal member 11 is composed of footplate 11a to be depressed by the driver, and protruding portion 11b engaged with the footplate, on which driver's heel can be put.

公开(公告)号：DE69831623D1

公开(公告)日：2006-02-02

申请号：DE69831623

申请日：1998-04-24

Applicant: HITACHI LTD

Inventor： MINOWA TOSHIMICHI ,  OCHI TATSUYA ,  KURAGAKI SATORU ,  KAYANO MITSUO ,  YOSHIKAWA TOKUJI

IPC: B60K31/00 ,  B60W10/06 ,  B60W10/10 ,  B60W10/18 ,  B60W30/16 ,  B60W30/18 ,  B60W40/06 ,  F02D11/10 ,  F02D35/00 ,  F02D41/02 ,  F02D41/04 ,  F02D41/12 ,  F02D41/14 ,  F16H59/48 ,  F16H61/21

Abstract: A control apparatus for a vehicle has means for setting a target driving shaft torque according to operation by a driver of said vehicle or to an environmental operating conditions ahead of said vehicle, means for detecting a vehicle speed of said vehicle, means for controlling a transmission ratio of a transmission of said vehicle by using said target driving shaft torque and the vehicle speed, means for detecting operation of an accelerator pedal by a driver, and means for detecting a deceleration rate of said vehicle, wherein when the operation of the accelerator pedal is detected being zero, an actual deceleration rate of said vehicle in a predetermined time period after the operation of the accelerator pedal becomes zero is detected, and the transmission ratio of said transmission is controlled by using at least detected actual deceleration rate.

公开(公告)号：DE19549599B4

公开(公告)日：2006-01-26

申请号：DE19549599

申请日：1995-04-27

Applicant: HITACHI LTD ,  HITACHI CAR ENG CO LTD

Inventor： UCHIDA MAKOTO ,  IBAMOTO MASAHIKO ,  SATO KAZUHIKO ,  KUROIWA HIROSHI ,  OHNISHI HIROSHI ,  MINOWA TOSHIMICHI

IPC: F16H59/14 ,  F16H61/16

Abstract: A car has an auto gearbox and indicators for parameters like engine load, throttle flap angle, car speed and gear ratio. There is a storage unit for the engine characteristic, the torque converter characteristic and the fuel consumption characteristic. The drive torque before and after a proposed gear shift, a value for the fuel consumption rate and the shifting point are all calculated in real time using signals from the indicators and the storage unit. If the calculations satisfy certain conditions, a shifting signal is sent to the gearbox. If one of the indicator signals is greater than a threshold near the maximum value, the shifting signal is sent when the engine speed drops by a certain amount.