JP6919316B2 - 車両制御装置 - Google Patents
車両制御装置 Download PDFInfo
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- JP6919316B2 JP6919316B2 JP2017095971A JP2017095971A JP6919316B2 JP 6919316 B2 JP6919316 B2 JP 6919316B2 JP 2017095971 A JP2017095971 A JP 2017095971A JP 2017095971 A JP2017095971 A JP 2017095971A JP 6919316 B2 JP6919316 B2 JP 6919316B2
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- B60W60/0015—Planning or execution of driving tasks specially adapted for safety
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- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2072—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off
- B60L15/2081—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for drive off for drive off on a slope
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F02D—CONTROLLING COMBUSTION ENGINES
- F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
- F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/46—Automatic regulation in accordance with output requirements
- F16H61/475—Automatic regulation in accordance with output requirements for achieving a target power, e.g. input power or output power
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/16—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed
- F16H2061/161—Inhibiting or initiating shift during unfavourable conditions, e.g. preventing forward reverse shift at high vehicle speed, preventing engine over speed by checking feasibility of shifts, i.e. determine if requested shift can be successfully completed and post shift values are in an acceptable range
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Combustion & Propulsion (AREA)
- Human Computer Interaction (AREA)
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- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Description
図1は、実施の形態に係る車両Vの概要を説明するための図である。図1を参照して、実施の形態に係る車両Vの概要を述べる。実施の形態に係る車両Vはディーゼルエンジン等のエンジンを駆動力とする大型車両である。
図2を参照しながら、実施の形態に係る車両Vの内部構成について説明する。図2は、実施の形態に係る車両Vの内部構成を模式的に示す図である。実施の形態に係る車両Vは、エンジン1、変速機2、GPS(Global Positioning System)センサ3、重量センサ4、速度センサ5、アクセル開度センサ6、及びECUとしての車両制御装置10を備える。
車両Vが、例えば登坂路など走行抵抗が増加する区間を走行する場合、エンジン1の出力馬力を制限した状態で先走行区間を走行すると、車両Vの余裕馬力が低下してしまう。そのため、馬力制限部18は、先走行区間の走行抵抗が現走行区間における車両の走行抵抗よりも大きくなる場合にエンジン1の出力馬力制限を解除する。このようにすることで、馬力制限部18は、車両Vの余裕馬力が低下することを防止することができる。以下、馬力制限部18が、先走行区間の走行抵抗に基づいてエンジン1の出力馬力の制限を解除する処理について具体的に説明する。なお、以下の説明においては、道路勾配取得部14が先走行区間の道路勾配を取得し、走行区間決定部15が先走行区間の走行抵抗を推定しているものとして説明する。
馬力制限部18は、シフト制御部17がギヤ段のシフトアップを抑制している状態においてエンジン1の出力馬力制限を解除する。シフト制御部17がシフトアップを抑制する場合、先走行区間においては走行抵抗が増加することが想定されるため、馬力制限部18は、予めエンジン1の出力馬力制限を解除することにより、余裕馬力の低下を防止することができるので、車両Vの速度の低下を防止することができる。そのため、馬力制限部18は、ドライバーに与える違和感を低減することができる。
馬力制限部18は、シフト制御部17が先ギヤ段にシフトダウンするようにシフトを制御した場合、エンジンの出力馬力制限を解除する。具体的には、馬力制限部18は、シフト制御部17が、先ギヤ段が現ギヤ段に比べて2段以上低いと判定し、現ギヤ段から先ギヤ段にシフトダウンした場合、エンジンの出力馬力制限を解除する。シフト制御部17がシフトダウンした場合、先走行区間においては走行抵抗が増加することが想定される。そのため、馬力制限部18は、予めエンジン1の出力馬力制限を解除する。このようにすることで、馬力制限部18は、余裕馬力の低下を防止することができるので、車両Vの速度の低下を防止することができる。そのため、馬力制限部18は、ドライバーに与える違和感を低減することができる。
以上説明したように、馬力制限部18が、現走行区間の走行抵抗に基づいてエンジン1の出力馬力を制限し、先走行区間の走行抵抗に基づいてエンジン1の出力馬力の制限を解除する。このようにすることで、馬力制限部18は、先走行区間において走行抵抗が増加し、エンジン1の出力馬力を制限した状態で走行した場合に車両の余裕馬力が低下してしまうことを防止することができるので、ドライバーの不快感を低減し、ドライブフィーリングを高めることができる。
2 変速機
3 GPSセンサ
4 重量センサ
5 速度センサ
6 アクセル開度センサ
10 車両制御装置
11 記憶部
12 制御部
13 現ギヤ段選択部
14 道路勾配取得部
15 走行区間決定部
16 先ギヤ段選択部
17 シフト制御部
18 馬力制限部
Claims (4)
- 車両が走行中の道路における道路勾配を取得する道路勾配取得部と、
前記車両が走行中の現走行区間とは道路勾配が異なる走行区間であって、前記車両の進行方向前方にある先走行区間を決定する走行区間決定部と、
前記車両の走行抵抗に基づいてエンジンの出力馬力を制限する馬力制限部と、
前記走行抵抗に基づいて前記現走行区間におけるギヤ段である現ギヤ段を選択する現ギヤ段選択部と、
前記先走行区間における前記車両のギヤ段である先ギヤ段を選択する先ギヤ段選択部と、
前記車両が前記現ギヤ段で前記現走行区間を走行中に、前記現ギヤ段選択部が新たに前記先ギヤ段よりも高段の目標ギヤ段を選択した場合に、前記現ギヤ段から前記目標ギヤ段へのシフトアップを抑制して前記現ギヤ段を維持するようにシフトを制御するシフト制御部と、を備え、
前記馬力制限部は、前記シフト制御部が前記ギヤ段のシフトアップを抑制している状態において、前記先走行区間の走行抵抗が前記現走行区間における前記車両の走行抵抗よりも大きくなる場合に前記エンジンの出力馬力制限を解除する、
車両制御装置。 - 前記馬力制限部は、前記先走行区間の道路勾配を用いて推定された前記車両の走行抵抗に基づいて前記エンジンの出力馬力制限を解除する、
請求項1に記載の車両制御装置。 - 前記シフト制御部は、前記先ギヤ段が前記現ギヤ段に比べて2段以上低い場合に前記現ギヤ段から前記先ギヤ段にシフトダウンを行い、
前記馬力制限部は、前記シフト制御部が前記現ギヤ段に比べて2段以上低い前記先ギヤ段にシフトダウンするようにシフトを制御した場合、前記エンジンの出力馬力制限を解除する、
請求項1又は2に記載の車両制御装置。 - 前記馬力制限部は、前記車両が前記現走行区間と前記先走行区間との境界を含む所定の範囲に進入した場合、前記エンジンの出力馬力制限を解除する、
請求項1から3のいずれか一項に記載の車両制御装置。
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