Hitachi, Ltd.

Other

Tokuji Yoshikawa

Satoru Kuragaki

Toshimichi Minowa

Kazuhiko Satou

Takao Kojima

Yoshinori Endo

Tatsuya Ochi

Hiroshi Kuroda

Mitsuo Kayano

Kozo Nakamura

Hiroshi Takenaga

Kimio Nishino

Jiro Takezaki

Hiroto Morizane

Shiho Izumi

Toshio Manaka

Kazuaki Takano

Mitsuru Nakamura

Kazuhiko Sato

Ryoichi Komuro

Atsushi Yokoyama

Nobuyuki Ueki

The present invention can realize a vehicle running control apparatus including ACC function and map information data recording medium to obtain effective information for safety driving capable for running control meeting a driver's feeling. The first running speed is decided on the basis of the distance between the vehicles and the relative speed. The position detecting means detects the position of own vehicle on a map. The map information getting means gets road information, the width of the road, the radius of curvature, and slope on the basis of the map information. The visible distance estimating means estimates the visible distance on the basis of the map information, deciding the second running safety speed with the estimated visible distance. The running control means decides the object running speed of smallest one of the set speed, the first running speed, and the second running speed.

Vehicle running control apparatus and map information data recording medium

An apparatus and a method for controlling an automotive vehicle are disclosed, in which a control amount for securing safety of the vehicle and the control amount for achieving a state intended for by the driver of the vehicle are switched in such a manner as to reduce the shock due to the change in the torque generated from the power train, thereby accomplishing both safety and maneuverability at the same time. A first target value is set for controlling at least selected one of the driving torque, the driving force and the acceleration/deceleration rate. A second target value is calculated in accordance with the drive mode intended for by the driver or the driving environment ahead of the vehicle. In the case where a deviation exceeding a predetermined value develops between the first target value and the second target value, the fluctuations of at least one of the driving torque, the driving force and the acceleration/deceleration rate are suppressed.

Automotive control apparatus and method

In a system of accelerating a car using a brake operating mechanism, the driver is required to be ready to step on the brake operating mechanism so as to rapidly decelerate the car in order to avoid danger, if necessary, while he is releasing his foot from the brake operating mechanism, which is a burden for the driver. Therefore, a footrest function range and a braking force increasing function range are provided to an operating amount or an operating force of a pedal

Apparatus for controlling run of a car, and car using the apparatus

An object of the present invention is to provide a vehicle control apparatus which makes it possible to share information by a plurality of devices and which can improve controllability. An OS switching means (OS-CH) switches a plurality of operating system (OS, OS). A shared object (CO) has a memory resource which can be referred to from the plurality of operating systems. The shared object (CO) shares at least road information, and the road information registered by the application of one of the operating systems can be referred to from the application of the other operating system.

Vehicle travel control apparatus

In a vehicular control device, it is necessary to measure or calculate six physical quantities-forward-reverse speed, left-right speed, vertical speed, pitch angle, roll angle, and angle of sideslip-representing vehicular movement and to control the braking force of each wheel and/or the damping coefficient of each suspension shock absorber in order to further shorten braking distance particularly at the time of braking and to prevent spin at that time. In this case, it is necessary to furnish sensors to measure speed and angle directly. In the present invention, four radar sensors are used in order to directly measure the forward-reverse speed and the left-right speed. Also, the vertical speed, the pitch angle, the roll angle, and the angle of sideslip are indirectly measured from the output of the radar sensors. By using three or four radar sensors, six physical quantities&#x2014;the forward speed, the left-right direction speed, the vertical speed, the angle of sideslip, the pitch angle, and the roll angle&#x2014;can be measured. Also, by using two radar sensors, three physical quantities&#x2014;the forward speed, the left-right speed, and the angle of sideslip&#x2014;can be measured.

Vehicular travel control device

Pedal devicehas a pedal memberdepressed by the driver, and arm memberengaged 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 memberis less than the fixed value, footrest meansrestricts the turning of the arm member. Pedal memberis composed of footplateto be depressed by the driver, and protruding portionengaged with the footplate, on which driver's heel can be put.

Pedal device for a vehicle and automobile using the same

An automobile running control system having 'Fast follow-up' and 'Slow follow-up' modes controls so that the automobile may cruise at an optimum car-to-car space between the automobile and an object which is selected among those detected and faster than a preset ground velocity in the &#x201c;Fast follow-up&#x201d; mode. When the fast follow-up velocity of the automobile falls under the preset velocity, the system automatically enters the &#x201c;Slow follow-up&#x201d; mode.

Automobile running control system

An automobile which is designed to be able to drive wheel tires by making use of a double series differential gear device provided with both a first series gear constituted by a first ring gear A and a first drive gear A and a second series gear constituted by a second ring gear B and a second drive gear B, thereby, a back-up for an abnormal situation can be prepared and a high reliability is maintained, accordingly, with the use of highly reliable differential gear mechanism, an automobile in which a stable braking force is always obtained without being affected by its environmental conditions is provided.

Automobile driving control device for braking a driving shaft

An on-vehicle emergency report apparatus, an emergency communication apparatus and an emergency report system are disclosed. The emergency report apparatus includes an emergency situation prediction unit for predicting the possibility of a vehicle involved encountering an emergency situation, a report control unit and a communication unit. The communication is established based upon the determination of the emergency situation prediction unit, which predicts the possibility of the vehicle encountering an emergency situation a predetermined time later, based on at least one of the feature quantities including the distance between the vehicle involved and the vehicle running immediately ahead, the relative speed, the relative acceleration, the speed of the vehicle involved, the brake pedal stroke, the steering wheel angle and the expression of the driver.

Growing community of inventors

Hitachi, Japan

Tokuji Yoshikawa