INDEPENDENT BRAKING AND CONTROLLABILITY CONTROL METHOD, AND SYSTEM FOR VEHICLE WITH REGENERATIVE BRAKING

PROBLEM TO BE SOLVED: To optimize energy recovery and vehicle controllability. SOLUTION: A control strategy is provided using feedback control algorithms for monitoring and dynamically modifying the front and rear braking torque for maintaining controllability in a vehicle that initially favors rege...

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Bibliographische Detailangaben
1. Verfasser:	BROWN TODD ALLEN
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OFVEHICLES ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To optimize energy recovery and vehicle controllability. SOLUTION: A control strategy is provided using feedback control algorithms for monitoring and dynamically modifying the front and rear braking torque for maintaining controllability in a vehicle that initially favors regenerative braking. Simple proportional-integral-derivative feedback controllers can be used. The controller 46 can independently monitor the wheel speed, lateral acceleration, yaw rate, and brake position, to selectively activate non-regenerative braking for each individual wheel 42, 64 and regenerative braking in varying proportion, based on at least one actual vehicle controllability value and at least one predetermined target value for controllability. Controllability factors can include predetermined longitudinal slip ratio, comparison of tire slip angle or the yaw rate. For rear-wheel drive configurations, the non-regenerative brakes can be applied to only one front axle 68 wheel on the outside of a turn, and for front-wheel drive configurations, non-regenerative brakes can be applied to only one rear axle wheel on the inside of the turn. COPYRIGHT: (C)2011,JPO&INPIT