Swash plate braking
AssigneeZimeno Inc.
InventorKaran Kaushik
Life of this patent
Estimating the term…
Abstract
A vehicle may include an electric motor, a variable displacement hydraulic pump having a swash plate, driven traction members, a transmission operably coupling the electric motor to the driven traction members and to the hydraulic pump, a hydraulic pressure consumer fluidly coupled to an output of the hydraulic pump, a battery to receive energy produced by the electric motor during braking of the driven traction members by the electric motor and a controller. The controller is configured to adjust an angle of the swash plate in response to a sensed state of the battery and braking of the driven traction members.
Claims17
A vehicle comprising:
- an electric motor;
- a variable displacement hydraulic pump having a swash plate;
- driven traction members;
- a transmission operably coupling the electric motor to the driven traction members and to the hydraulic pump;
- a hydraulic pressure consumer fluidly coupled to an output of the hydraulic pump;
- a battery to receive energy produced by the electric motor during braking of the driven traction members by the electric motor;
- a controller configured to adjust an angle of the swash plate in response to a sensed state of the battery and braking of the driven traction members.
A vehicle braking method comprising:
- determine braking by a vehicle;
- determine a battery state of a battery used to propel the vehicle;
- in response to the battery state satisfying a predetermined threshold, adjusting a swashplate angle of a variable displacement hydraulic pump to a braking angle;
- and
- in response to the battery state satisfying the predetermined threshold, directing flow from the variable displacement hydraulic pump to a compensator/relief.
A non-transitory computer-readable medium containing instructions to direct the processor to:
- determine braking by a vehicle;
- determine a battery state of a battery used to propel the vehicle;
- in response to the battery state satisfying predetermined threshold, output control signals to adjust a swashplate angle of a variable displacement hydraulic pump to a braking angle;
- and
- in response to the battery state satisfying the predetermined threshold, output control signals directing flow from the variable displacement hydraulic pump to a compensator/relief.
Dependencies are inferred from the claim text.