A cooling system and method for an auxiliary braking device of a hydrogen fuel cell truck, are provided in consideration that auxiliary braking force generated by the regenerative braking of the motor may be unnecessary and the brake resistor may be unnecessary when a sufficient amount of auxiliary braking force is generated alone by the operation of a retarder. A portion of thermal energy generated by the retarder is distributed to a stack cooling system so that the portion of thermal energy is removed by the stack cooling system. Accordingly, due to sufficient cooling of the retarder, a sufficient amount of auxiliary braking force is provided, and the brake resistor that has consumed surplus electrical energy generated by regenerative braking is removed.

A brake lamp control method of a vehicle is provided. The method includes determining whether a deceleration of the vehicle based on regenerative brake through the electric motor is present in a hysteresis period between an off threshold as a reference for turning off a brake lamp and an on threshold as a reference for turning on the brake lamp. When the deceleration of the vehicle is present in the hysteresis period, the method includes determining a state of the brake lamp before the deceleration of the vehicle enters the hysteresis period. In response to determining that the brake lamp is turned on or off for a reason except for the regenerative brake before the deceleration of the vehicle enters the hysteresis period, a request for turning on the brake lamp is set or reset based on the regenerative brake in response to the determined state of the brake lamp.

In one embodiment, systems and methods of controlling switch modules for dynamically deriving selective circuitries within a plurality of similar voltage energy storage devices of an energy storage system, and/or, within a plurality of stators of a motor/generator, or a plurality of stators of system of motors/generators, thereby optimizing the utilization of energy stored, consumed, and regenerated in the operation of a vehicle.

A brake arrangement for a vehicle comprising a braking system arranged to vary hydraulic or pneumatic brake pressure that is arranged to apply a pressure to a brake caliper; an electric motor arranged to generate a braking torque that is applied to a first wheel when the electric motor is placed in a braking mode of operation, wherein the electric motor is arranged to vary brake torque generated when the electric motor is in the braking mode dependent upon a predetermined operating condition of the braking system.

A brake arrangement for a vehicle comprising a braking system arranged to vary hydraulic or pneumatic brake pressure that is arranged to apply a pressure to a brake caliper; an electric motor arranged to generate a braking torque that is applied to a first wheel when the electric motor is placed in a braking mode of operation, wherein the electric motor is arranged to vary brake torque generated when the electric motor is in the braking mode dependent upon a predetermined operating condition of the braking system.

A mobile mining machine includes a plurality of traction elements, a plurality of motors, a power source in electrical communication with the plurality of motors, and an energy storage system in electrical communication with the plurality of motors and the power source. Each of the motors is coupled to an associated one of the plurality of traction elements. Each of the motors is driven by the associated traction element in a first mode, and drives the associated traction element in a second mode. The energy storage system includes a shaft, a rotor secured to the shaft, a stator extending around the rotor, and a flywheel coupled to the shaft for rotation therewith. In the first mode, rotation of the motors causes rotation of the flywheel to store kinetic energy. In the second mode, rotation of the rotor and the flywheel discharges kinetic energy to drive the motors.

A mobile mining machine includes a plurality of traction elements, a plurality of motors, a power source in electrical communication with the plurality of motors, and an energy storage system in electrical communication with the plurality of motors and the power source. Each of the motors is coupled to an associated one of the plurality of traction elements. Each of the motors is driven by the associated traction element in a first mode, and drives the associated traction element in a second mode. The energy storage system includes a shaft, a rotor secured to the shaft, a stator extending around the rotor, and a flywheel coupled to the shaft for rotation therewith. In the first mode, rotation of the motors causes rotation of the flywheel to store kinetic energy. In the second mode, rotation of the rotor and the flywheel discharges kinetic energy to drive the motors.

A control system includes a current sensor and one or more processors. The current sensor is configured to be disposed onboard a vehicle and to monitor a measured current conducted into a resistor leg of the vehicle. The resistor leg has a braking chopper and one or more resistive elements, and is connected with a traction bus of the vehicle. The one or more processors are configured to receive the measured current from the current sensor and, in response to the measured current differing from an expected current through the resistor leg, the one or more processors are configured to generate a control signal configured to one or more of increase an engine speed of an engine of the vehicle, increase cooling to the one or more resistive elements of the resistor leg, restrict movement of the vehicle, or schedule maintenance for the resistor leg.

A control system includes a current sensor and one or more processors. The current sensor is configured to be disposed onboard a vehicle and to monitor a measured current conducted into a resistor leg of the vehicle. The resistor leg has a braking chopper and one or more resistive elements, and is connected with a traction bus of the vehicle. The one or more processors are configured to receive the measured current from the current sensor and, in response to the measured current differing from an expected current through the resistor leg, the one or more processors are configured to generate a control signal configured to one or more of increase an engine speed of an engine of the vehicle, increase cooling to the one or more resistive elements of the resistor leg, restrict movement of the vehicle, or schedule maintenance for the resistor leg.

A method for controlling the regenerative braking torque of a vehicle having a data processing unit for detecting a first information representing a deceleration request of the vehicle, detecting a second information representing a speed of the vehicle, and a first moving member of the vehicle and a second moving member of the vehicle. The method includes determining temperatures of different braking components on different axles, as well as the state of a battery module and a traction and regenerative braking module. The method also includes determining a regenerative braking power dynamic distribution ratio between the first and second axles. A regenerative braking torque is provided to one of the modules.