To provide an auxiliary brake device of a vehicle which can reduce the influence due to the occurrence of the pulsation by controlling a pump that circulates engine cooling fluid and can protect a component.SOLUTION: An auxiliary brake device 1 of a vehicle provided in a cooling circuit 50 of an engine 10 comprises: a pump 30 which circulates cooling fluid in a cooling circuit 50; a retarder 20 which is arranged between a transmission connected to the output side of the engine 10 and a drive wheel of the vehicle and includes a fluid chamber that generates brake force in the drive wheel when the cooling fluid flows therein; and a control unit 70 which controls the inflow of the cooling fluid to the retarder 20. The control unit 70 suppresses the output of the pump 30 for a prescribed period when the rotation frequency of the engine 10 is equal to or greater than a prescribed value in a case where the cooling fluid flows in the retarder 20.SELECTED DRAWING: Figure 2
【課題】エンジン冷却流体を循環させるポンプを制御することで脈動の発生による影響を低減し、構成部品を保護することができる車両の補助制動装置を提供する。【解決手段】エンジン10の冷却回路50に設けられる車両の補助制動装置1であって、冷却回路50において冷却流体を循環させるためのポンプ30と、エンジン10の出力側に連結された変速機と車両の駆動輪との間に配設され、冷却流体が流れ込むことで駆動輪に制動力を発生させる流体室を備えたリターダ20と、冷却流体のリターダ20への流入を制御する制御部70と、を備え、制御部70は、冷却流体をリターダ20へ流入させる時にエンジン10の回転数が所定値以上の場合、ポンプ30の出力を所定期間に渡り抑制する。【選択図】図2
AUXILIARY BRAKE DEVICE OF VEHICLE
車両の補助制動装置
2023-10-25
Patent
Electronic Resource
Japanese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |
AUXILIARY BRAKE CONTROL DEVICE, AUXILIARY BRAKE CONTROL METHOD AND AUXILIARY BRAKE CONTROL PROGRAM
European Patent Office | 2021
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