Denso Corporation

Advics Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Satoshi Niwa

Hajime Kumabe

Yasuhiro Nakai

Masayoshi Takeda

Shintaro Osaki

Hiroyuki Kodama

Shotaro Fukuda

Kazunori Kadowaki

Syotarou Fukuda

Yukio Mori

Mitsuhiro Tokimasa

Yuji Ninagawa

Takahisa Yokoyama

Masatoshi Hanzawa

Tatsuya Namikiri

Motoaki Umakoshi

A communication control apparatus is configured to store communicability information, configured to control an update of the communicability information, configured to acquire a first route as a scheduled route along which the communication control apparatus moves, configured to control communication with the external device during moving of the communication control apparatus to control the update of the communicability information, based on the first route, the communicability information, and a communication detail requested by the communication control apparatus and the external device, configured to perform communication with the external device, configured to collect data required for the update of the communicability information through communication with the external device, and configured to control the update of the communicability information based on the collected data.

Communication control apparatus, communication control method, and non-transitory storage medium with communicability information updating

A communication control device is configured to: store communication possibility information in which positions at which the communication control device is connectable to an external device and communication modes that are usable at the positions, among a plurality of communication modes, are correlated with each other; acquire a first route as an expected route along which the communication control device is to move; control a communication mode that is used by an application implemented by the communication control device for communication with the external device while the communication control device is moving, based on the first route, communication possibility information, and a communication content required by the application; and execute communication between the application and the external device by using the communication mode controlled by the control unit.

Communication control device, communication control method, and non-transitory storage medium

A control apparatus controls acceleration of a vehicle provided with a motive power generation apparatus and brake apparatuses. For the control, the control apparatus comprises calculation and actuating blocks. The calculation block calculates torque to be requested, based on a difference between an actual value of the acceleration and a target value thereof and a gain for feedback controlling the actual value of the acceleration to the target value thereof. The gain is differentiated in value between in a first case in which the brake apparatuses are used for the feedback control and a second case in which the brake apparatuses are not used for the feedback control. The actuating block actuates the motive power generation apparatus and the brake apparatuses based on the calculated torque. The value of the gain in the first case is made larger than the value of the gain in the second case.

Method and apparatus for controlling acceleration of a vehicle

A control apparatus is provided to control the stopping of a vehicle. The control apparatus comprises a speed detector that detects a speed of a vehicle, speed acquiring means, target setting means, and control means. The speed acquiring means acquires an actual speed of the vehicle from detected results of the speed detector. The target setting means sets a target acceleration of the vehicle depending on the actual speed when the vehicle is stopped automatically. The control means controls an actual acceleration of the vehicle at the target acceleration.

Apparatus and system for controlling automatic stopping of vehicle

A running control apparatus calculates a target driving or braking torque in a calculating block to control the vehicle driven or braked by this torque at a target speed against a running resistance changed with running circumstances of the vehicle. In a control block, when a driver-required braking torque based on the braking operation of the driver is smaller than the target braking torque, the running control for the vehicle is performed to brake the vehicle by the target braking torque. When the driver-required braking torque becomes higher than the target braking torque, the running control is stopped, and the driver manually brakes the vehicle by the driver-required braking torque. When the driver-required braking torque is decreased to be lower than the target braking torque or a predetermined braking torque corresponding to the release of the braking operation, the running control is restarted.

Running control apparatus and running control program for the apparatus

A vehicle speed control device calculates a desired axle torque for maintaining a speed of a vehicle to a set speed, and conducts cruise control. Specifically, the vehicle speed control device calculates a drive force including a feedforward component corresponding to the set speed and a travel resistance against the travel of the vehicle, and a feedback component corresponding to a deviation of the set speed from the actual speed of the vehicle as a desired axle torque. The vehicle speed control device interrupts the cruise control when a requested drive axle torque requested by an accelerator operation during the cruise control exceeds the desired axle torque, and restarts the cruise control when the requested drive axle torque becomes lower than the desired axle torque.

Vehicle speed control device and method

An apparatus is provided for controlling acceleration of a vehicle to a target acceleration. In the apparatus, a target acceleration calculator calculates the target acceleration. A provisional acceleration setting unit sets a provisional target acceleration such that a change rate of the provisional target acceleration is limited to a target limitation value. The provisional target acceleration is used during a step during which the acceleration of the vehicle is changed to the target acceleration. A drive power calculator calculates a drive power to obtain the provisional target acceleration. In the provisional acceleration setting unit, an initial value of the provisional target acceleration depends on a running state of the vehicle.

Apparatus for controlling acceleration of vehicle

A control request arbitration apparatus of a vehicle includes respective sections for selecting one of a plurality of position control requests generated by control request apparatuses, for converting the selected position control request to a converted speed control request, for selecting one of a plurality of speed control requests including the converted speed control request, for converting the selected speed control request to a converted acceleration control request, and for selecting one of a plurality of acceleration control requests including the converted acceleration control request. Since position/acceleration and speed/acceleration conversion sections become unnecessary in control request apparatuses, the total of these sections becomes independent of the number of control request apparatuses.

Apparatus for arbitrating plurality of control requests relating to automatic control of vehicle motion

In a cruise control system for a vehicle, a cruise ECU calculates a cornering resistance applied to the vehicle based upon a steering angle, when a vehicle turns. The cruise ECU calculates a speed reduction amount as a correction vehicle speed based upon the cornering resistance. The cruise ECU subtracts the correction vehicle speed from a set vehicle speed to set a target vehicle speed so that the vehicle speed becomes lower as the cornering resistance is larger. The cruise ECU controls the vehicle speed to be within a permissible speed range of the target vehicle speed.

Cruise control system and method

A control apparatus controlling anteroposterior acceleration of a vehicle by controlling a motive power generation apparatus mounted on the vehicle, which is also provided with a staged transmission apparatus that operates on gear ratios. The motive power generation apparatus has an output shaft producing a rotation force in response to a command to be requested. The rotation force is transmitted to the drive wheels via the staged transmission apparatus. A feedback manipulated variable is calculated to control the production of the rotation force of the motive power generation apparatus so that an actual value of anteroposterior acceleration of the vehicle is controlled at a target value thereof. The calculated feedback manipulated variable is used as the command. When the staged transmission apparatus is in the switchover control of the gear ratios, the manipulated variable is is limited from being calculated (for example, stopped from being calculated).

Method and apparatus for controlling anteroposterior acceleration of a vehicle

A vehicle speed control system starts an automatic decelerating operation with a maximum permissible decelerating physical amount 'G', when an electronic control unit determines that a necessary decelerating physical amount for decreasing a vehicle speed 'v' to a target vehicle speed &#x201c;v&#x201d; at a curve starting point becomes larger than the maximum permissible decelerating physical amount &#x201c;G&#x201d;. The vehicle speed control system terminates the automatic decelerating operation, when required decelerating physical amount by a braking operation during the automatic decelerating operation becomes larger than an actual control decelerating physical amount for the automatic decelerating operation. The electronic control unit calculates the necessary decelerating physical amount &#x201c;G&#x201d; based on a distance &#x201c;d&#x201d; to the curve starting point and the vehicle speed &#x201c;v&#x201d;, in order to re-start an automatic decelerating operation with the decelerating physical amount &#x201c;G&#x201d;, when the required decelerating physical amount becomes lower than the decelerating physical amount &#x201c;G&#x201d;.

Vehicle speed control system

A vehicle automatic operation control device includes a target required torque calculating part () which determines the target required torque from the respective calculated values of a feed-forward calculated value and a feedback calculated value, and an automatic operation control part D which causes the vehicle to operate automatically on the basis of the determined target required torque, and which performs slip suppression control that suppresses slip of the wheels when any of the wheels of the vehicle slip. In cases where slip suppression control is performed by the automatic operation control part (D), the target required torque calculating part () holds the feedback calculated value based on the deviation between the target acceleration and actual acceleration, and determines the target required torque from the respective calculated values of the held feedback calculated value and feed-forward calculated value.

Vehicle automatic operation control device

An estimated gradient value of a road is calculated based on a vehicle acceleration 'A' and a time varying portion 'A'' of a wheel speed. In a case that an acceleration corresponding value &#x201c;Ggrad&#x201d; for the estimated gradient value is not regarded as indicating an exact figure, due to influences of disturbances, the acceleration corresponding value &#x201c;Ggrad&#x201d; is corrected by a limiting value for rate-of-change with regard to the road gradient depending on respective vehicle speed, and by a limiting value for the road gradient. As a result, the acceleration corresponding value &#x201c;Ggrad&#x201d; for the estimated gradient value can be more exactly obtained.

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Nagoya, Japan

Satoshi Niwa