An apparatus for controlling energy regeneration variably capable of performing a variable control based on a deceleration event discrimination using a map information input as well as a driver's operation may include a controller configured to change a preset energy regeneration stage variably to a corresponding regenerative braking control by sensing an event for an energy regeneration stage and perform the corresponding regenerative braking control, and a generator configured to generate power according to the regenerative braking control.

A vehicle power supply apparatus includes a generator, an electrical energy accumulator, a throttle valve, a power generation controller, a throttle plate position upper limit setting unit, and a throttle valve controller. The generator is coupled to an engine of a vehicle. The electrical energy accumulator is able to be coupled to the generator. The throttle valve is provided in an intake system of the engine. The power generation controller allows the generator to perform regenerative power generation on decelerated travel of the vehicle. The throttle plate position upper limit setting unit sets an upper limit of a throttle plate position of the throttle valve on the basis of a state of the electrical energy accumulator. The throttle valve controller controls the throttle plate position within a range downward from the upper limit, during the regenerative power generation by the generator.

A coasting control method of an eco-friendly vehicle includes steps of acquiring deceleration event information and road gradient information in front of a vehicle during driving, by a controller in the vehicle, determining target vehicle speed in a deceleration event in consideration of road gradient based on the deceleration event information and the road gradient information, by the controller, determining expected vehicle speed while the vehicle is decelerated in a coasting state, based on current vehicle speed, by the controller, determining a start location for starting coasting based on target vehicle speed in consideration of current vehicle speed of the vehicle and the road gradient and expected vehicle speed at a target location as a deceleration event location, by the controller, and operating an information provider for coasting guidance and coasting induction to a driver at a start location, by the controller.

A vehicle having a controller is provided. The controller may be configured to, responsive to identification of a braking event predicted to occur in the future, hydraulically charge an accumulator, and responsive to a pressure of the accumulator exceeding a first threshold, cease charging the accumulator, and satisfy transmission line pressure demand with pressure from the accumulator to begin depleting the accumulator to a before initiation of the braking event.

A drive system of a hybrid vehicle including an internal combustion engine, a first and second motor-generators, a mode change mechanism, a valve unit, an oil pump driven by electric power, and a microprocessor. The microprocessor is configured to control the valve unit and driving electric power for the oil pump in drive mode including the EV mode and not including the HV mode, so as to stop to supply the hydraulic oil to the mode change mechanism and drive the oil pump by a first driving electric power when first travel mode is selected, while so as to supply the hydraulic oil of a hydraulic pressure lower than the predetermined hydraulic pressure to the mode change mechanism and drive the oil pump by a second driving electric power greater than the first driving electric power when second travel mode is selected.

A through the road (TTR) hybridization strategy is proposed to facilitate introduction of hybrid electric vehicle technology in a significant portion of current and expected trucking fleets. In some cases, the technologies can be retrofitted onto an existing vehicle (e.g., a trailer, a tractor-trailer configuration, etc.). In some cases, the technologies can be built into new vehicles. In some cases, one vehicle may be built or retrofitted to operate in tandem with another and provide the hybridization benefits contemplated herein. By supplementing motive forces delivered through a primary drivetrain and fuel-fed engine with supplemental torque delivered at one or more electrically-powered drive axles, improvements in overall fuel efficiency and performance may be delivered, typically without significant redesign of existing components and systems that have been proven in the trucking industry.

A vehicle includes a pair of electric machines each coupled to a laterally-opposing wheel to output a wheel torque. The vehicle also includes a controller programmed to command a combined regenerative braking torque output of the electric machines based on a lesser of a braking torque limit of each individual electric machine. The controller is also programmed to command a regenerative braking torque from each electric machine to be within a predetermined torque threshold of each other in response to a yaw rate exceeding a yaw threshold.

A control system for a hybrid vehicle that shift an operating mode to an appropriate mode from a low mode or high mode. The hybrid vehicle comprises a power split mechanism connected to an engine and a first motor. When a required brake torque of a prime mover cannot be achieved during propulsion in an operating mode established by engaging one of clutches while stopping the engine, the control system excites a motoring of the engine by the first motor while maintaining engagement of the clutch engaged to establish the current operating mode.

A vehicle includes a powertrain and a controller. The powertrain includes a transmission torque converter having a bypass clutch disposed between an electric machine and a drive wheel. The controller is programmed to adjust a closed-state torque capacity of the bypass clutch according and in proportion to the greater in absolute value of a negative impeller torque command to the torque converter and a negative regenerative braking torque request.

A management of the operation of automotive dual battery electrical system in which the automotive electronic control unit is configured to: determine the current operation status of an automotive dual battery electrical system defined by the current electric charge statuses of a main electrical energy source and of an auxiliary electrical energy source and by the current electrical energy demand of electrical loads, determining which operation area of an operation plane of the automotive dual battery electrical system the current operation status of the automotive dual battery electrical system belongs to, and control the operation of the automotive dual battery electrical system, and enable or disable the implementation of one or more of the functionalities of automatic start and stop of the internal combustion engine, of regenerative braking and of electric charging depending on the operation area which the current operation status of the automotive dual battery electrical system belongs to.