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1. WO2020194680 - WORK VEHICLE

Publication Number WO/2020/194680
Publication Date 01.10.2020
International Application No. PCT/JP2019/013663
International Filing Date 28.03.2019
IPC
B60W 10/06 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10Conjoint control of vehicle sub-units of different type or different function
04including control of propulsion units
06including control of combustion engines
B60K 6/46 2007.10
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
KARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
6Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines
20the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
42characterised by the architecture of the hybrid electric vehicle
46Series type
B60L 50/61 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
50Electric propulsion with power supplied within the vehicle
50using propulsion power supplied by batteries or fuel cells
60using power supplied by batteries
61by batteries charged by engine-driven generators, e.g. series hybrid electric vehicles
B60W 10/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10Conjoint control of vehicle sub-units of different type or different function
04including control of propulsion units
08including control of electric propulsion units, e.g. motors or generators
B60W 10/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
10Conjoint control of vehicle sub-units of different type or different function
30including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps
B60W 20/14 2016.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
20Control systems specially adapted for hybrid vehicles
10Controlling the power contribution of each of the prime movers to meet required power demand
13in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
14in conjunction with braking regeneration
Applicants
  • 日立建機株式会社 HITACHI CONSTRUCTION MACHINERY CO., LTD. [JP]/[JP]
Inventors
  • 歌代 浩志 UTASHIRO Hiroshi
  • 神谷 昭範 KAMIYA Akinori
  • 伊藤 徳孝 ITO Noritaka
  • 大木 孝利 OOKI Takatoshi
  • 関野 聡 SEKINO Satoshi
Agents
  • 特許業務法人 武和国際特許事務所 THE PATENT BODY CORPORATE TAKEWA INTERNATIONAL PATENT OFFICE
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) WORK VEHICLE
(FR) VÉHICULE DE TRAVAIL
(JA) 作業車両
Abstract
(EN)
Provided is a technology that makes it possible to reliably obtain the braking force needed when traveling, and to effectively utilize regenerative power generated when braking. This work vehicle calculates the regenerative power output from a motor and a target hydraulic drive power for driving a hydraulic pump. If the regenerative power is no greater than the target hydraulic drive power, the work vehicle causes the regenerative power to be supplied to and consumed by a motor generator operating as a motor. If the regenerative power is greater than the target hydraulic drive power, the work vehicle causes the regenerative power to be supplied to the motor generator operating as a motor and causes power corresponding to the difference between the regenerative power and the target hydraulic drive power to be consumed by an exhaust brake.
(FR)
L'invention concerne une technologie permettant d'obtenir de façon fiable la force de freinage nécessaire lors du déplacement, et d'utiliser efficacement la puissance de régénération générée lors du freinage. Ce véhicule de travail calcule la puissance de régénération émise par un moteur et une puissance d'entraînement hydraulique cible pour entraîner une pompe hydraulique. Si la puissance de régénération n'est pas supérieure à la puissance d'entraînement hydraulique cible, le véhicule de travail entraîne l'acheminement de la puissance de régénération vers un générateur de moteur servant de moteur, ainsi que la consommation de cette puissance par ledit générateur. Si la puissance de régénération est supérieure à la puissance d'entraînement hydraulique cible, le véhicule de travail entraîne l'acheminement de la puissance de régénération vers le générateur de moteur servant de moteur et entraîne la consommation par un frein sur échappement de la puissance correspondant à la différence entre la puissance de régénération et la puissance d'entraînement hydraulique cible.
(JA)
走行時に必要な制動力を確実に得ることができ、且つ制動時に発生する回生動力を有効に利用する技術を提供する。 作業車両は、電動機から出力される回生動力、及び油圧ポンプを駆動する目標油圧駆動動力を演算し、回生動力が目標油圧駆動動力以下の場合に、回生動力をモータとして動作する発電電動機に供給して消費させ、回生動力が目標油圧駆動動力より大きい場合に、回生動力をモータとして動作する発電電動機に供給させると共に、回生動力と目標油圧駆動動力との差に相当する動力を排気ブレーキに消費させる。
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