To provide a vehicular braking device capable of securing the braking performance of a vehicle while providing a long life of a capacitor.SOLUTION: A vehicular braking device comprises: a dynamo-electric brake booster 43 which can brake a vehicle by driving of a motor 32; a main power source 11 which can supply electric power to the dynamo-electric brake booster 43; a capacitor 21 which can supply electric power to the dynamo-electric brake booster 43; an ECU 5 which can brake the electric power supplied to the dynamo-electric brake booster 43; and a parking state detection unit 53 which can detect a parking state of the vehicle. The ECU 5 includes a discharge control unit 54 that discharges the electric power held by the capacitor 21 while leaving reserved power E2a during the parking of the vehicle; and a reserved power changing unit 55 that changes the reserved power E2a on the basis of the parking state detected by the parking state detection unit 53.SELECTED DRAWING: Figure 6
【課題】キャパシタの長寿命化を図りつつ車両の制動性能を確保することができる車両用制動装置を提供する。【解決手段】モータ32の駆動により車両を制動可能な電動ブレーキブースタ43と、この電動ブレーキブースタ43に電力を供給可能な主電源11と、電動ブレーキブースタ43に電力を供給可能なキャパシタ21と、電動ブレーキブースタ43に供給する電力を制御可能なECU5と、車両の駐車状態を検出可能な駐車状態検出部53とを有し、ECU5に、車両駐車時に保留電力E2aを残してキャパシタ21の保有する電力を放電する放電制御部54と、駐車状態検出部53により検出された駐車状態に基づき保留電力E2aを変更する保留電力変更部55とを設けている。【選択図】 図6
VEHICULAR BRAKING DEVICE
車両用制動装置
2019-05-30
Patent
Electronic Resource
Japanese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |