Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Hitachi, Ltd.

Honda Motor Co., Ltd.

Keiichiro Nagatsuka

Makoto Yamakado

Mikio Ueyama

Toshiyuki Innami

Junya Takahashi

Hideaki Kido

Mitsuhide Sasaki

Hirofumi Ikoma

Masayuki Nakatsuka

Mitsutoshi Morinaga

Takeshi Kibayashi

There is provided an outside environment recognition device that rapidly performs target recognition processing when there is a possibility that a target coming into contact with an own vehicle appears. There is provided an outside environment recognition device that recognizes a target. An arithmetic operation device includes a blind region edge detection unit that detects an edge of a blind region where the target is likely to appear, based on outside environment information, a traveling path estimation unit that estimates a future path of the own vehicle based on a traveling direction and a speed of the own vehicle included in vehicle information, a recognition region division unit that divides a region between the edge and the path into a first region to which first target recognition processing is applied and a second region to which second target recognition processing is applied, based on a contact possibility between the own vehicle and a virtual target appearing on the path from the edge, and a target detection unit that detects a target appearing from the edge by applying the first target recognition processing in the first region, and detects the target appearing from the edge by applying the second target recognition processing in the second region. The first target recognition processing and the second target recognition processing have different recognition sensitivities.

Outside environment recognition device and outside environment recognition method

A driving assistance device comprises: a recognition unit configured to recognize a lighting color of a traffic light from an image captured by a camera that images an outside world of a vehicle; and an alarm output unit configured to output an alarm to a driver of the vehicle when the lighting color is red and there is no braking operation of the vehicle. When a plurality of traffic lights are recognized from the image by processing of the recognition unit, the alarm output unit controls the output of the alarm based on a combination of lighting colors of the plurality of traffic lights.

Driving assistance device, vehicle, driving assistance method, and storage medium

Provided is a travel control device for a vehicle such that comfortable and safe control for the vehicle is possible without disturbing the driver. The travel control device for the vehicle is provided with a control command computation unit for calculating a steering assist amount for assisting the steering of the vehicle and an acceleration command value for controlling braking and driving forces of the vehicle. The control command computation unit calculates an estimated lateral position of the vehicle at a gaze distance ahead of the vehicle; calculates a lateral displacement amount of the vehicle at the estimated lateral position from a target traveling path and a lateral displacement speed; calculates a steering assist amount on the basis of the lateral displacement amount and the lateral displacement speed; calculates a lateral acceleration and lateral jerk generated by the vehicle according to the steering assist amount; and calculates an acceleration command value based on the lateral acceleration and the lateral jerk.

Travel control device for vehicle

The purpose of the present invention is to provide a device and method for controlling vehicle motion and a vehicle equipped with the device, such that driving force and/or braking force is properly distributed between front wheels and rear wheels so that steering characteristics are made suitable and controllability and stability improve. This device comprises a means for controlling braking and/or driving force distribution between the front wheels and rear wheels of a vehicle such that when the absolute value of lateral acceleration of the vehicle increases, the distribution to the front wheels is made smaller, and when the absolute value of lateral acceleration of the vehicle decreases, the distribution to the front wheels is made larger.

Method and device for controlling vehicle motion and vehicle equipped with same

Provided is a vehicle running control apparatus capable of controlling a vehicle comfortably while inhibiting an uncomfortable feeling of a driver in consideration of dimensions of longitudinal acceleration requirements for the vehicle. This vehicle running control apparatus includes: a first control command value calculation unit configured to calculate a first control command value that controls vehicle longitudinal acceleration; a second control command value calculation unit configured to calculate a second control command value that controls longitudinal acceleration according to a lateral jerk that acts on the vehicle; a correction determination processing unit configured to determine whether to make correction based on the first control command value and the second control command value; and a correction processing unit configured, when the correction determination processing unit determines that correction is needed, to correct the first control command value based on the second control command value.

Vehicle running control apparatus

The present invention improves emergency evasion performance. An operation control system for a vehicle that is provided with a risk-potential determining unit that determines the risk potential of a vehicle on the basis of external environment information and/or vehicle information, a friction braking unit that applies friction braking force to the vehicle, and a regenerative braking device that applies regenerative braking force to the vehicle, the operation control system being provided with a control value determining unit that determines a first control value that is for determining the size of the friction braking force and determines a second control value that is for determining the size of the regenerative braking force. The control value determining unit determines at least the first control value on the basis of the risk potential determined by the risk-potential determining unit.

Operation control system for vehicle, vehicle, and program

A processor for a vehicle includes a vehicle yaw moment instruction calculator, and a mode under which yaw moment of the vehicle is controlled. If the vehicle yaw moment instruction value generates the driving forces or the driving torques, the driving forces or driving torques are different between the left and right wheels. If the vehicle yaw moment instruction value generates the braking forces or the braking torques, the braking forces or the braking torques are different between the left and right wheels. The mode operates at least in transit region between daily region and limit region.

Processor for a vehicle

Disclosed is a vehicle motion control system that can control a vehicle without making a driver feel uncomfortable. The vehicle motion control system includes a control command value calculation unit configured to calculate a control command value for controlling the longitudinal acceleration of a vehicle; a longitudinal acceleration estimating unit configured to estimate the longitudinal acceleration of the vehicle induced by a driver's brake operation; a longitudinal jark estimating unit configured to estimate the longitudinal jark of the vehicle by differentiating the longitudinal acceleration with respect to time; a deviation determination unit configured to determine a deviation between vehicle's motion induced by the driver's brake operation and vehicle's motion induced by a control command using the longitudinal jark and the control command value; and a control command value correction unit configured to correct the control command in accordance with a deviation determination result of the deviation determination unit.

Vehicle motion control system

Provided is a motion controlling apparatus for a vehicle that can achieve improvement in drivability, stability, and driving comfort. The apparatus includes a control unit for controlling driving forces of vehicle wheels; a vehicle acceleration/deceleration instruction calculator for calculating an acceleration/deceleration instruction value on the basis of a lateral jerk; a first vehicle yaw moment instruction calculator for calculating a first vehicle yaw moment instruction value on the basis of the lateral jerk; and a second vehicle yaw moment instruction calculator for calculating a second vehicle yaw moment instruction value on the basis of lateral slip information.

Motion controlling apparatus for a vehicle

Provided is a vehicle movement control system which does not cause a discomfort feeling at a normal time and securely assists a driver at the time of emergency avoidance steering. The vehicle movement control system includes: a risk potential estimation unit which estimates a risk potential of a vehicle based on input environmental information and vehicle information; a vehicle longitudinal movement control unit which generates a longitudinal movement control command of the vehicle based on a lateral jerk of the vehicle and a predetermined gain; a vehicle yawing movement control unit which generates a yawing movement control command of the vehicle based on the lateral jerk of the vehicle and the predetermined gain; and a ratio adjustment unit which adjusts a ratio between the longitudinal movement control command of the vehicle and the yawing movement control command of the vehicle, wherein the ratio adjustment unit adjusts the ratio based on the risk potential estimated by the risk potential estimation unit.

Vehicle movement control system

In order to reliably assist a driver in emergency detour steering without causing a jerking forward motion of the vehicle during normal operation, a vehicle motion control device includes: a risk potential estimator that estimates a risk potential of a vehicle based on input external information and vehicle information; a vehicle longitudinal motion controller that generates a longitudinal motion control command of the vehicle based on a vehicle lateral jerk and a predetermined gain; and a gain adjustor that adjusts the gain, in which the gain adjustor adjusts the gain based on the risk potential estimated by the risk potential estimator.

Vehicle motion control device

A vehicle travel control device includes a control instruction value calculation unit, a driver acceleration intent quantification unit, and a control instruction value correction determination unit that determines whether correction of a control instruction value is required in response to a quantified driver's acceleration intent. The vehicle travel control device also includes a control instruction value correction unit that corrects the control instruction value in response to a correction determination result of the control instruction value correction determination unit. The driver acceleration intent quantification unit quantifies the driver's acceleration intent using an integral value of the longitudinal jerk occurring according to the brake operation of the driver.

Vehicle travel control device

A vehicle travel control system includes a first unit configured to calculate a target longitudinal acceleration/deceleration control command of the own vehicle based on a distance or a relative speed between the own vehicle and a forward obstacle, traveling route information from a vehicle navigation system or a Global Positioning System, and input information such as a vehicle speed set by a driver; a second unit configured to calculate a target longitudinal acceleration/deceleration control command according to a lateral jerk that acts on the own vehicle; and an arbitration unit configured to perform, based on the target longitudinal acceleration/deceleration control command calculated by the second unit, arbitration of the target longitudinal acceleration/deceleration control command calculated by the first unit, wherein output from the arbitration unit is set as a command to control the target longitudinal acceleration/deceleration control command of the own vehicle.

Vehicle travel control system

The radar apparatus of the present invention can obtain distance to a target and speed with higher accuracy even when multiple targets are running within a detecting field of a radar. The radar apparatus can transmit a radio wave by alternately switching a section having a frequency slope and a section having no frequency slope with the radar for simultaneously transmitting a couple of frequencies having a frequency difference. Measurement of distance to the target and relative speed is conducted in the above two sections, results of measurement are compared with each other in the adjacent sections, and the result of measurement is determined correct only when there is no inconsistency in these measurement results.

Growing community of inventors

Hitachinaka, Japan

Keiichiro Nagatsuka