Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Hitachi, Ltd.

Renesas Electronics Corporation

Renesas Technology Corp.

Teppei Hirotsu

Hideyuki Sakamoto

Tatsuya Horiguchi

Nobuyasu Kanekawa

Teruaki Sakata

Motoyuki Abe

Masahiro Toyohara

Ryo Kusakabe

Toshihiro Aono

Ayumu Hatanaka

Takao Fukuda

Ryosuke Ishida

Hiromichi Yamada

Kotaro Shimamura

Osamu Mukaihara

Tsutomu Yamada

Hiroshi Iwasawa

Itaru Tanabe

Ryoichi Inada

Taizo Yamawaki

Hiroki Yamashita

Toshiaki Nakamura

Yoshihito Yasukawa

Tadanobu Toba

Taisuke Ueta

Akiyasu Miyamoto

Atsushi Arata

Takeshi Kataoka

Hirofumi Kurimoto

Kenichi Hoshino

Hitoshi Suzuki

Yusuke Kanno

Tetsuya Yamada

Toshio Hori

Kazuyoshi Serizawa

Takashi Hotta

Yasuhiro Nakatsuka

Yuki Tanaka

Ryo Fujita

Takuya Mayuzumi

Mitsuhiko Watanabe

Akira Nishioka

Hidehiro Toyoda

Hideharu Ehara

Shunichi Iwata

Yoshitaka Takahashi

Tomohito Ebina

Satoru Shigeta

Ming Liu

Chihiro Sato

Satoshi Tsutsumi

Kesami Hagiwara

Dai Fujii

Yoichi Yuyama

Akihiro Yamate

Hidetatsu Yamamoto

Shouji Muramatsu

Haruyuki Nakayama

Katsuichi Tomobe

Keiji Kadota

Kouichi Yahata

Kiyoshi Aiki

Ryohichi Inada

Yuuichi Abe

Noboru Sugihara

There are realized a vehicle control device and an electronic control system with high reliability capable of safely shifting control even when an operation abnormality occurs in a sensor around a vehicle or an arithmetic block that processes sensor fusion. The vehicle control device includes a first arithmetic block which performs sensor fusion processing based on pieces of raw data output from a plurality of surrounding environment sensors, a second arithmetic block which performs sensor fusion processing based on pieces of object data generated by processing the pieces of raw data output from the plurality of surrounding environment sensors, and a third arithmetic block which diagnoses an output result of the first arithmetic block by using the output result of the first arithmetic block and an output result of the second arithmetic block.

Vehicle control device and electronic control system

Provided is an automatic driving system based on a model predictive control, the automatic driving system where, in an event of a failure of an actuator, identification between a real vehicle and a vehicle model is simplified. Based on information regarding the failure of the actuator, the automatic driving system updates a spot in the vehicle model, the spot corresponding to the spot of failure detected, to a fixed value, and causes an actuator control device for the actuator, where the failure is detected, to fix a command value that is overwritten in accordance with a state of the actuator. With this configuration, the identification between the real vehicle and the vehicle model is simplified.

Vehicle control device

The reliability of path planning calculation can be evaluated with low load without using multiplexing of calculation or an additional sensor. The electronic control device includes an integration unit that acquires information around a vehicle as sensor information from a plurality of sensors for each processing cycle, and integrates the acquired sensor information to create vehicle peripheral information for each processing cycle, a path planning unit that calculates a planned path on which the vehicle will travel in the future using the vehicle peripheral information for each processing cycle, and a path evaluation unit that evaluates reliability of the path planning unit, in which the path evaluation unit that uses, in the planned path calculated by the path planning unit in a first processing cycle, a position of the vehicle in a second processing cycle, which is a processing cycle after the first processing cycle, and the vehicle peripheral information created by the integration unit in the second processing cycle to evaluate the reliability of the path planning unit in the first processing cycle.

Electronic control device

Image data captured from a traveling vehicle is considered, and it is not possible to reduce the transmission band of the image data. It is assumed that a radarmounted in a traveling vehicledetects a certain distant three-dimensional object at a time T in a direction of a distance d1 [m] and an angle θ1. Since the vehicletravels at a vehicle speed Y [km/h], it is predicted that a camerais capable of capturing the distant three-dimensional object at a time (T+ΔT) and an angle ϕ1 or at a distance d2 [m]. Therefore, if a control unitoutputs a request to the camerain advance, so as to cut out an image of the angle ϕ1 or the distance d2 [m] at the time (T+ΔT), when the time (T+ΔT) comes, the cameratransfers a whole image and a high-resolution image being a cutout image of only a partial image, to the control unit

In-vehicle electronic control device

Provided is a device that prevents a vehicle behavior from being unstable when an operation is continued using a degeneration function at a time of failure of a drive unit command value generation function in an autonomous driving system. A future actuator command value outputted by a main function unit for generating a drive unit command value and a simple actuator command value outputted by the degeneration function of generating a drive unit command value are synthesized using a weighting factor that changes with time.

Driving control system

An object of the present invention is to enhance the reliability of an autonomous driving system. The autonomous driving system includes: a higher-level control devicethat outputs a control target value of an actuator group based on an action plan of a vehicle; and a lower-level control devicethat controls the actuator group of the vehicle based on a command from the higher-level control device. The lower-level control deviceholds the control target value of the vehicle provided by the higher-level control deviceover a specific period. When the higher-level control devicedoes not satisfy a desired function, the lower-level control deviceis configured to be controlled based on the held control target value. The action plan is followed by determining and correcting a difference between an actual action value and the control target value of the vehicle.

Autonomous driving control device

The present invention addresses the problem of implementing a neural network using a small-scale circuit by simplifying the multiplication of the input data by weight data. The neural network circuit according to the present invention is configured from: a means for multiplying input data by a rounded value of the mantissa part of weight data; a means for shifting the multiplication result by the number of bits of the rounded value; a means for adding the shifted result to the original input data; and a means for shifting the addition result by the number of bits of the exponent part of the weight.

Neural network circuit providing for operations with bit shifting and rounded values of weight information

An electronic control device including a sensor fusion processing unit that integrates a plurality of pieces of sensor information having been input from a plurality of sensors. The electronic control device further including a behavior prediction processing unit that obtains a future value in which a future behavior of a target object is predicted based on joint information integrated by the sensor fusion processing unit. The electronic control device further including a comparison unit that compares a future value predicted by the behavior prediction processing unit with output information of each sensor of the sensor fusion processing unit at a predicted time.

There is provided a technology capable of synchronizing a plurality of timers with a simple circuit configuration in an electronic control unit that controls a vehicle. An electronic control unit according to the present invention concatenates a second timer value as the most significant bit of a first timer value reset by a synchronization signal, and counts up the second timer value by the synchronization signal.

A prediction control device controls an actuator for automatic driving of a vehicle including: a command value generation unit generating an operation amount for the actuator and an operation amount candidate as a predicted value; an output prediction unit outputting a control amount candidate as a predicted value corresponding to the actuator output by using an operation model; an evaluation function calculation unit expressing constraint conditions for the automatic driving; a situation degree detection obtaining a measure of giving priority to ride comfort or giving priority to danger avoidance of an own vehicle while traveling; and a responsiveness adjusting unit obtaining a next operation amount candidate from the situation degree from the situation degree detection unit. The operation command value generation unit generates an operation amount for the actuator, and the responsiveness adjusting unit adjusts the output of the evaluation function according to the situation degree.

Prediction control device and method

In the invention, a problem is solved in which, in order to achieve high performance and high reliability with the conventional multi-core and lockstep core, a redundant lockstep core is necessarily prepared to execute a multi-core program in which an error has occurred, a circuit area increases, and a cost and a power consumption increase. In the invention, a safe operation of a control system is secured by operating a software program operating on a multi-core in which an error has occurred as degenerate software on a core switched from a lockstep operation to a multi-core operation.

Reconfiguration control device

An electronic control device for a vehicle according to the present invention includes an action prediction unit that predicts the action of an object around the vehicle on the basis of external information acquired from external information detection units that detect external information of the vehicle, and a determination unit for a detection unit that determines whether an abnormality has occurred in the external information detection unit by comparing external information acquired from the external information detection unit at the time corresponding to a prediction result of the action prediction unit to the prediction result of the action prediction unit.

Electronic control device for vehicle

An electromagnetic valve control unit for detecting operation of an electromagnetic valve on the basis of a drive voltage or a drive current applied to the electromagnetic valve. The electromagnetic valve control unit includes an A/D converter, a filter, and a detection unit. The A/D converter converts the drive voltage or the drive current into a digital signal. The filter has a gain of about zero at a predetermined frequency. The detection unit detects operation of the electromagnetic valve on the basis of an output of the filter upon input of the digital signal into the filter.

Electromagnetic valve control unit and internal combustion engine control device using same

A circuit generation device that implements a standard function and a degeneration function has a first operation synthesis function of generating a circuit description based on a system operation description, there are provided a degenerate parameter extraction function of extracting a degenerate parameter from the operation description, a degeneration parameter change function of changing a value of the degeneration parameter, a second operation synthesis function of generating a degeneration circuit description based on the operation description and the degeneration parameter value, and a determination function of determining whether the performance of the degeneration circuit description satisfies a constraint condition based on the circuit description. When the determination function determines that the degeneration circuit description does not satisfy the constraint condition, the second operation synthesis function is executed after the value of the degeneration parameter is changed by the degeneration parameter change function.

Circuit generation device and software generation device

A vehicle control device capable of improving safety, even when abnormality in the operation of an arithmetic processing unit occurs. A second microcomputer receives trajectory information transmitted from a first microcomputer via a communication line and calculates control commands to actuators to synchronize the arithmetic processing unit allowing the first and second microcomputers to be synchronized. The second microcomputer performs a calculation and compares the result with the calculation result of the first microcomputer so that the second microcomputer can accurately determine whether or not the first microcomputer is abnormal. When the abnormality occurs in the first microcomputer based on the determination, the actuators are controlled by switching to the control commands calculated by the second microcomputer which is synchronized with the arithmetic processing unit. Thus, the device performs seamless self-driving control without the occurrence of abrupt control gaps.

Growing community of inventors

Tokyo, Japan

Teppei Hirotsu