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advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習...

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© Hitachi Automotive Systems, Ltd. 2019. All rights reserved. 142 x 202 x 38 (mm) Performance CPU 認識 Recognition Safety CPU 制御 Control 現行品 次期型 Accelerator (FPGA) 人工知能 Artificial Intelligence Performance CPU 認識 Recognition Safety CPU 制御 Control AD : Autonomous Driving CPU : Central Processing Unit ECU : Electronic Control Unit FPGA : Field Programmable Gate Array 一般道での自動運転実現を目指して, 人工知能(AI)の搭載が可能なAD-ECUを計画中 Aiming to realize automatic driving on general roads, an AD-ECU that can be equipped with Artificial Intelligence is planned. 自動運転ECU ハードウエア AD-ECU Hardware 人工知能(AI)の搭載が可能 Artificial intelligence can be installed. 125 x 210 x 25 (mm) 小型 高性能化 Compact and high performance
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Page 1: advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習 Re-training ・Acceleratorへ実装 Implemented in ECU accelerator ・枝刈り (識別精度に低寄与な演算の削除)

© Hitachi Automotive Systems, Ltd. 2019. All rights reserved.

142 x 202 x 38 (mm)

Performance CPU 認識 Recognition

Safety CPU 制御 Control

現行品 次期型

Accelerator (FPGA) 人工知能 Artificial Intelligence

Performance CPU 認識 Recognition

Safety CPU 制御 Control AD : Autonomous Driving

CPU : Central Processing Unit ECU : Electronic Control Unit FPGA : Field Programmable Gate Array

一般道での自動運転実現を目指して, 人工知能(AI)の搭載が可能なAD-ECUを計画中 Aiming to realize automatic driving on general roads, an AD-ECU that can be equipped with Artificial Intelligence is planned.

自動運転ECU ハードウエア AD-ECU Hardware

人工知能(AI)の搭載が可能 Artificial intelligence can be installed.

125 x 210 x 25 (mm)

小型 高性能化 Compact and

high performance

Page 2: advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習 Re-training ・Acceleratorへ実装 Implemented in ECU accelerator ・枝刈り (識別精度に低寄与な演算の削除)

© Hitachi Automotive Systems, Ltd. 2019. All rights reserved.

Per

form

ance

[fps]

0

40

80

120

160

Compression rate[%]

0 25 50 75 10090

90%の縮約で約6倍の性能向上 About 6 times performance improvement

by 90% compression rate実装性能評価

Performance Evaluation

DNN : Deep Neural Network

縮約 Compression

学習 Training

実装 Implementation

縮約 Compress

再学習 Re-training

・Acceleratorへ実装 Implemented in ECU accelerator

・枝刈り(識別精度に低寄与な演算の削除) Pruning (Elimination of operations that have low contribution to identification accuracy)

・重み付け Weight Sharing

膨大な情報量 Huge amount of

information

一般道での自動運転に必要なAI(深層学習)を, 低電力・低コストでECUに実装する「AI縮約実装技術」を開発 Hitachi AMS has developed “AI compression technology” that implements AI (Deep Learning) necessary for autonomous  driving on general roads in ECUs at low power and low cost.

自動運転ECU ソフトウエアAD-ECU Software

DNN Deep Neural Network

(オリジナル) (original)

DNN Deep Neural Network

(縮約後) (After compression)

性能向上によって「早く, 正確に」周囲の状況を認識できる AD-ECU can recognize the surrounding situation “fast and accurate” by improving performance.

Page 3: advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習 Re-training ・Acceleratorへ実装 Implemented in ECU accelerator ・枝刈り (識別精度に低寄与な演算の削除)

© Hitachi Automotive Systems, Ltd. 2019. All rights reserved.

人工知能を搭載すると, 一般道での複雑な走行環境の認識性能が向上 When equipped with artificial intelligence, the recognition performance of complex driving environments on general roads is improved.

人工知能(深層学習)による認識Recognition by Artificial Intelligence (Deep Learning)

車と人が重なっていたり, 一部が隠れている物体も認識 AI can recognize the environment even when a car and a person overlap, or even if an object is partially hidden.

Page 4: advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習 Re-training ・Acceleratorへ実装 Implemented in ECU accelerator ・枝刈り (識別精度に低寄与な演算の削除)

© Hitachi Automotive Systems, Ltd. 2019. All rights reserved.

車両周辺の動き推定 Motion estimation around the vehicle

駐車車両 Parked Vehicle

自車 Own Vehicle

歩行者 Pedestrian

二輪車 Bicycle

他車 Other Vehicle

数秒後の歩行者や車両の位置を推定 Estimate the position of pedestrians and another vehicle A few seconds later

人工知能を搭載すると, 車両周囲物体の「動きの予測」が可能になる With artificial intelligence, it is possible to "predict movement" of objects around the vehicle.

人工知能(深層学習)による認識Recognition by Artificial Intelligence (Deep Learning)

AIによる 「動き予測」 Motion prediction

by AI

Page 5: advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習 Re-training ・Acceleratorへ実装 Implemented in ECU accelerator ・枝刈り (識別精度に低寄与な演算の削除)

© Hitachi Automotive Systems, Ltd. 2019. All rights reserved.

仮想空間 Virtual space

システム開発 System Development

安全性検証 Safety Verification

自動運転シミュレーター Autonomous driving simulator

道路情報 Road information

(白線, 信号, 標識他) (White lines, signals, signs, etc.)

周辺環境 Surrounding environment

(周辺車両, 静止物他) (Nearby vehicles, stationary objects, etc.)

実世界 Real world

自車両 Own vehicle

(センサー, 制御 他) (Sensor, control, etc.)

倉庫

空港農業

住宅 ゴミ処理場堤防

河川橋

実車両 Real Vehicle

歩行者 Pedestrian

周辺車両 Nearby Vehicles

バイク Bike

仮想空間で自動運転車を走行させることにより, 「システム開発」及び「安全性検証」を支援 Supporting system development and safety verification by running an autonomous vehicle in virtual space

シミュレーションを活用したシステム開発・安全性検証System development and safety verification using simulation

仮想車両 Virtual Vehicle

歩行者 Pedestrian

周辺車両 Nearby Vehicles

バイク Bike

Page 6: advanced system technology02 0225...Training 実装 Implementation 縮約 Compress 再学習 Re-training ・Acceleratorへ実装 Implemented in ECU accelerator ・枝刈り (識別精度に低寄与な演算の削除)

© Hitachi Automotive Systems, Ltd. 2019. All rights reserved.

シミュレーションを活用したシステム開発・安全性検証System development and safety verification using simulation

交差点右折時の自転車対応自動ブレーキのシミュレーション映像 Simulation video of automatic brake for bicycle when turning right at intersection


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