One embodiment relates to a hybrid vehicle drive system for a vehicle including a first prime mover, a first prime mover driven transmission, a rechargeable power source, and a PTO. The hybrid vehicle drive system further includes a hydraulic motor in direct or indirect mechanical communication with the PTO and an electric motor in direct or indirect mechanical communication with the hydraulic motor. The electric motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO. The hydraulic motor can provide power to the prime mover driven transmission and receive power from the prime mover driven transmission through the PTO.

Hybrid vehicle drive system and method and idle reduction system and method

The present invention is to drive a hydraulic pump (12) and a generator motor (13) by an engine (10), electrically charge a battery (20) by a generator operation of the generator motor (13), and assist the engine (10) through driving the generator motor (13) by electric power of the battery (20). On the premise of the configuration above, when a deviation between a target rotation speed of the engine and an actual rotation speed of the engine is equal to or more than a preset value, and when a residual amount of fuel is equal to or less than a preset value, it is considered to be engine failure or an operation state which is directly connected to the engine failure and an engine assisting action is automatically stopped.

Hybrid working machine

A parallel hybrid vehicle system utilizing the Power Take Off connection on an automatic transmission as a transfer port for a secondary device is described for both driving modes and stationary operation The secondary device is a battery powered electric motor providing motive power or regenerative braking in driving mode or providing power to accessories typically mounted to a conventional PTO while stationary

Parallel hybrid drive system utilizing power take off connection as transfer for a secondary energy source

In a hybrid excavator, a hydraulic pump and a generator motor are connected in parallel to an output shaft of an engine and a rotation motor is driven by a battery. The generator motor assists the engine by performing a motor function. Power consumption of each of the hydraulic pump and the rotation motor is detected. The output of the hydraulic pump and the rotation motor is controlled such that the sum of the detected power consumption does not exceed maximum supply power set as the sum of power that can be supplied to the hydraulic pump and the rotation motor.

Hybrid construction machine

One embodiment relates to a system for idle reduction in a hybrid vehicle. The system includes a control system for causing the vehicle to operate in a charge depletion mode, or a charge accumulation mode in response to job site data; the job site data can include an estimate of the amount of energy required at the job site.

System for and method of fuel optimization in a hybrid vehicle

PROBLEM TO BE SOLVED: To simplify and downsize a belt transmission structure of a power system, while securing a large-capacity power source for control with good voltage stability. SOLUTION: In this hybrid construction machinery, hydraulic pumps 16a and 16b, a generator motor 17, a cooling fan 29, and a compressor 32 for air conditioning in a cabin are driven by an engine 13 which is installed in the engine compartment 12 of upper machinery 2. The hybrid construction machinery is equipped with a main storage device 20 as a main power source, which is charged by the output of the generator motor 17, and control equipment which includes a controller 21. The power source for control, which serves as a power source for the control equipment is constituted by connecting an auxiliary storage device 22 to the storage device 20 via a DC/DC converter. Belt transmission equipment 34 is constituted as follows: a crank pulley is attached to the output shaft of the engine 13; a fan pulley is attached to the driving shaft of the cooling fan 29; a compressor pulley is attached to the driving shaft of the compressor; and a belt is looped over each of the pulleys. COPYRIGHT: (C)2007,JPO&INPIT

明仁美野

Papers

Hybrid construction machinery

明仁 美野

Papers

Hybrid construction machinery

明仁美野