초록 ▼

A series hybrid electric-combustion system is provided which includes an engine (16) operable to generate mechanical energy and translate it to a drive shaft (21). A battery (24) is included that is operable to store electrical energy and to deliver electrical energy. Also provided is a electric mac

A series hybrid electric-combustion system is provided which includes an engine (16) operable to generate mechanical energy and translate it to a drive shaft (21). A battery (24) is included that is operable to store electrical energy and to deliver electrical energy. Also provided is a electric machine (18) mechanically coupled to engine (16) and electrically coupled to battery (24). Electric machine (18) has two modes of operations. In the first mode it translates electrical energy from battery (24) into additional mechanical energy at drive shaft (21). In the second mode of operation, electric machine (18) delivers electrical energy to battery (24) for storage. Converter (22) is also included in the system to convert the electrical energy from electric machine (18) for storage and battery (24) and also for converting electrical energy from battery (24) for use by electric machine 18. The system also includes command (12) for inputting system power requirements and controller (14) to control converter (22) and engine (16) in the modes of operation of the system.

대표청구항 ▼

A hybrid electric-combustion vehicle drive system, comprising: an engine operable to generate mechanical energy, said engine mechanically coupled to a drive mechanism; a battery operable to store electrical energy and to deliver electrical energy; an electric machine mechanically coupled to said eng

A hybrid electric-combustion vehicle drive system, comprising: an engine operable to generate mechanical energy, said engine mechanically coupled to a drive mechanism; a battery operable to store electrical energy and to deliver electrical energy; an electric machine mechanically coupled to said engine and said drive mechanism, and electrically coupled to said battery, said electric machine operable to translate electrical energy from said battery into additional mechanical energy at said drive mechanism in a first mode of operation and to translate mechanical energy from said engine and said drive mechanism to electrical energy and to deliver the electrical energy to charge said battery in a second mode of operation; and a controller coupled to said engine and said electric machine operable to monitor said engine and said electric machine over a period of time, said controller being further operable to adjust the power level of said engine such that for each of a plurality of different operating conditions said engine operates at a determined average required power level of the system when said battery is a partially charged condition and to operate said engine at a power level below the determined average required power level of the system when said battery is in a fully charged condition, the first mode of operation being entered when system power requirements exceed a selected operating power level of the engine and the second mode of operation being entered when system power requirements are less than a selected operating power level of the engine, said controller being further operable to control the delivery of electrical energy from said electrical machine to said battery.