# US 12,179,739 B1 · Regeneration power control > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,179,739 B1 - Document ID: US12179739B1 - Status: Granted - Kind: B1 - Application number: 18/313,070 - Filed: 2023-05-05 - Granted: 2024-12-31 - Earliest claimed: 2016-01-04 - Assignees: Hydro-Gear Limited Partnership - Applicants: Hydro-Gear Limited Partnership - Inventors: Nathan W. Bonny - Web page: https://patentgrep.com/patent/US12179739B1 ## CPC - B60K 6/46: Series type - B60W 20/14: in conjunction with braking regeneration - B60K 6/20: the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs - B60W 10/06: including control of combustion engines - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - B60W 10/30: including control of auxiliary equipment, e.g. air-conditioning compressors or oil pumps - B60W 20/12: using control strategies taking into account route information {(estimation or calculation of non-directly measurable driving parameters B60W40/00)} - B60W 30/18127: {Regenerative braking} - B60W 30/18136: {Engine braking} - B60W 30/1888: {Control of power take off [PTO]} - B60W 20/40: Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers {(power-up or power-down of the driveline B60W30/192)} - B60W 2510/244: Charge state - B60W 2510/305: Power absorbed by auxiliaries - B60W 2552/15: Road slope, i.e. the inclination of a road segment in the longitudinal direction - B60W 2710/08: Electric propulsion units - B60W 2710/30: Auxiliary equipments - B60W 2720/10: Longitudinal speed - B60Y 2200/92: Hybrid vehicles - B60Y 2300/18125: Regenerative braking - B60Y 2300/91: Battery charging - B60Y 2400/87: Auxiliary drives - Y02T 10/40: Engine management systems - Y02T 10/62: Hybrid vehicles - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - Y02T 10/84: Data processing systems or methods, management, administration - Y10S 903/903: having energy storing means, e.g. battery, capacitor - B60K: ARRANGEMENT 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 - B60W: CONJOINT 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 - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract A utility vehicle with regenerative braking is disclosed. The utility vehicle includes a system power bus, a battery coupled to the system power bus, at least one electric drive motor configured to generate power through the regenerative braking and supply the power onto the system power bus, and a first controller configured to decrease a maximum travel speed to reduce an amount of the power generated through the regenerative braking when the battery is fully charged and the power is greater than a power consumption limit. ## Claims ### Claim 1 A utility vehicle with regenerative braking, comprising: a system power bus; a battery coupled to the system power bus; at least one electric drive motor configured to generate power through the regenerative braking and supply the power onto the system power bus, wherein the at least one electric drive motor is configured to generate the power through the regenerative braking when: a torque of the at least one electric drive motor is increasing and a rotational speed of the at least one electric drive motor is decreasing; or the torque of the at least one electric drive motor is decreasing and the rotational speed of the at least one electric drive motor is increasing; and a first controller configured to decrease a maximum travel speed to reduce an amount of the power generated through the regenerative braking when the battery is fully charged and the power is greater than a power consumption limit. ### Claim 2 (depends on 1) The utility vehicle of claim 1, further including at least one ground drive controller configured to control the at least one electric drive motor. ### Claim 3 (depends on 2) The utility vehicle of claim 2, wherein the at least one ground drive controller is further configured to determine a slope of a travel surface. ### Claim 4 (depends on 3) The utility vehicle of claim 3, wherein the first controller is configured to decrease the maximum travel speed upon the at least one ground drive controller detecting an increase in the slope of the travel surface. ### Claim 5 (depends on 3) The utility vehicle of claim 3, wherein, to determine the slope of the travel surface, the at least one ground drive controller uses current sensing on at least one of the system power bus and phases of the at least one electric drive motor. ### Claim 6 (depends on 3) The utility vehicle of claim 3, further including at least one of a gyro sensor and an angle sensor that collects data to enable the at least one ground drive controller to determine the slope of the travel surface. ### Claim 7 (depends on 1) The utility vehicle of claim 1, wherein the first controller is configured to determine the maximum travel speed based on the torque of the at least one electric drive motor and consumable power of a power take-off. ### Claim 8 (depends on 1) The utility vehicle of claim 1, wherein the first controller is further configured to direct the power to the battery for recharging when the battery is not fully charged. ### Claim 9 A utility vehicle with regenerative braking, comprising: a system power bus; a battery coupled to the system power bus; at least one electric drive motor configured to generate power through the regenerative braking and supply the power onto the system power bus; and a first controller configured to: decrease a maximum travel speed to reduce an amount of the power generated through the regenerative braking when the battery is fully charged and the power is greater than a power consumption limit; and direct the power to at least one power sink for consumption of the power when the battery is fully charged and the power is less than or equal to the power consumption limit. ### Claim 10 (depends on 9) The utility vehicle of claim 9, wherein the at least one power sink includes a power take-off. ### Claim 11 A regenerative braking system for a vehicle, comprising: a battery; at least one electric drive motor that is configured to generate power through regenerative braking, wherein the at least one electric drive motor is configured to generate the power through the regenerative braking when: a torque of the at least one electric drive motor is increasing and a rotational speed of the at least one electric drive motor is decreasing; or the torque of the at least one electric drive motor is decreasing and the rotational speed of the at least one electric drive motor is increasing; a first controller configured to decrease a maximum travel speed of the vehicle to reduce an amount of the power generated through the regenerative braking when the battery is fully charged and the power is greater than a power consumption limit; and at least one ground drive controller configured to control the at least one electric drive motor. ### Claim 12 (depends on 11) The regenerative braking system of claim 11, wherein the first controller is configured to decrease the maximum travel speed upon the at least one ground drive controller detecting an increase in a slope of a travel surface. ### Claim 13 (depends on 12) The regenerative braking system of claim 12, wherein the at least one ground drive controller uses current sensing to determine the slope of the travel surface. ### Claim 14 (depends on 12) The regenerative braking system of claim 12, wherein the at least one ground drive controller to determine the slope of the travel surface based on data collected by at least one of a gyro sensor and an angle sensor. ### Claim 15 (depends on 11) The regenerative braking system of claim 11, wherein the first controller is configured to determine the maximum travel speed based on the torque of the at least one electric drive motor and consumable power of a power take-off. ### Claim 16 (depends on 11) The regenerative braking system of claim 11, wherein the first controller is further configured to direct the power to the battery for recharging when the battery is not fully charged. ### Claim 17 A regenerative braking system for a vehicle, comprising: a battery; at least one electric drive motor that is configured to generate power through regenerative braking; a first controller configured to: decrease a maximum travel speed of the vehicle to reduce an amount of the power generated through the regenerative braking when the battery is fully charged and the power is greater than a power consumption limit; and direct the power to a vehicle power sink for consumption when the battery is fully charged and the power is less than or equal to the power consumption limit; and at least one ground drive controller configured to control the at least one electric drive motor. ### Claim 18 (depends on 17) The regenerative braking system of claim 17, wherein the vehicle power sink includes a power take-off.