To provide an inter-vehicle distance control device which realizes an inter-vehicle distance which can be satisfied by a driver.SOLUTION: An inter-vehicle distance control device which receives an inter-vehicle distance, a relative speed and a speed of an own vehicle and calculates a vehicle speed command, and inputs the same to a vehicle speed control unit, which controls a vehicle speed, thereby making the speed of the own vehicle match with the vehicle speed command and controlling an inter-vehicle distance between the own vehicle and a preceding vehicle. This inter-vehicle distance control device comprises: a target inter-vehicle distance setting unit which sets a target inter-vehicle distance; a target track generation unit which generates a target track which defines a time history from an initial value of an inter-vehicle distance to an inter-vehicle distance until converging to a target inter-vehicle distance; a target track design unit which determines a response characteristic of the target track generation unit based on the inter-vehicle distance, the target inter-vehicle distance and the relative speed; a track follow-up feed forward control unit which calculates a feed forward vehicle speed command based on the target inter-vehicle distance by use of a transfer function of the response characteristic of the target track generation unit and a reverse transfer function of a response characteristic of the vehicle speed control unit; and a vehicle speed command calculation unit which generates a vehicle speed command based on the speed of the own vehicle, the relative speed, and the feed forward vehicle speed command.SELECTED DRAWING: Figure 1
【課題】ドライバが満足できる車間距離制御を実現した車間距離制御装置を提供する。【解決手段】車間距離、相対速度および自車の速度を受けて車速指令を演算し、車速を制御する車速制御部に入力することで自車の速度を車速指令に一致させて先行車との車間距離を制御する車間距離制御装置であって、目標車間距離を設定する目標車間距離設定部と、車間距離の初期値から目標車間距離に収束するまでの車間距離の時間履歴を定義する目標軌道を生成する目標軌道生成部、車間距離、目標車間距離および相対速度に基づいて目標軌道生成部の応答特性を決定する目標軌道設計部、目標軌道生成部の応答特性の伝達関数、車速制御部の応答特性の逆伝達関数を用いて、目標車間距離に基づいてフィードフォワード車速指令を演算する軌道追従フィードフォワード制御部、自車の速度、相対速度、フィードフォワード車速指令に基づいて車速指令を生成する車速指令演算部を備える。【選択図】図1
INTER-VEHICLE DISTANCE CONTROL DEVICE
車間距離制御装置
2019-05-23
Patent
Electronic Resource
Japanese
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
INTER-VEHICLE DISTANCE CONTROL METHOD AND INTER-VEHICLE DISTANCE CONTROL DEVICE
European Patent Office | 2018
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