초록 ▼

A vehicle powertrain control system including an electric motor drive system, a first battery coupled to the electric motor drive system, an electronically controlled switched coupled to the first battery, a second battery coupled to the electronically controlled switch, and where the electronically

A vehicle powertrain control system including an electric motor drive system, a first battery coupled to the electric motor drive system, an electronically controlled switched coupled to the first battery, a second battery coupled to the electronically controlled switch, and where the electronically controlled switch applies power from the second battery to supplement the first battery.

대표청구항 ▼

The invention claimed is: 1. A vehicle powertrain control system comprising: an electric motor drive system; an internal combustion engine operatively coupled to said electric motor drive system; a first battery coupled to said electric motor drive system; an electronically controlled switch couple

The invention claimed is: 1. A vehicle powertrain control system comprising: an electric motor drive system; an internal combustion engine operatively coupled to said electric motor drive system; a first battery coupled to said electric motor drive system; an electronically controlled switch coupled to said first battery; a second battery coupled to said electronically controlled switch, wherein said first and second battery are directly electrically coupled at a common voltage level when said electronically controlled switch is closed; wherein said electronically controlled switch isolates said first battery from said second battery upon startup of said internal combustion engine; and wherein said electronically controlled switch applies power from said second battery to supplement said first battery during select operating conditions. 2. The vehicle powertrain control system of claim 1 further comprising a DC/DC converter coupled to said electronically controlled switch, wherein said electronically controlled switch applies power from said DC/DC converter to supplement said second battery. 3. The vehicle powertrain control system of claim 1 wherein said electric motor drive system comprises an inverter coupled to an induction motor. 4. The vehicle control system of claim 1 wherein said first battery comprises a lead acid battery. 5. The vehicle control system of claim 1 wherein said second battery comprises a lead acid battery. 6. The vehicle control system of claim 1 wherein said electronically controlled switch comprises a silicon conducting rectifier. 7. The vehicle control system of claim 1 wherein said electronically controlled switch comprises a transistor. 8. The vehicle control system of claim 1 wherein said electronically controlled switch comprises an electromechanical relay. 9. A vehicle powertrain control system comprising: an electric motor drive system; an internal combustion engine operatively coupled to said electric motor drive system; a first battery coupled to said electric motor drive system; a second battery coupled to a vehicle accessory system; an electronically controlled switch coupled to said first battery and said second battery; a DC/DC converter coupled to said electronically controlled switch; wherein said electronically controlled switch applies power from said DC/DC converter to supplement said first battery, and wherein said DC/DC converter, said first battery, and said second battery share a common electrical reference when said electronically controlled switch is closed; and wherein said electronically controlled switch isolates said first battery from said second battery during staffing of said internal combustion engine. 10. The vehicle powertrain control system of claim 9 wherein said electric motor drive system includes an inverter. 11. A vehicle powertrain control system comprising: an electric motor drive system; a first battery coupled to said electric motor drive system; an electronically controlled switch coupled to said first battery; a second battery coupled to said electronically controlled switch, wherein said first and second battery operate at substantially the same voltage at a common electrical connection when said electronically controlled switch is closed; wherein said electronically controlled switch applies power from said second battery to supplement said first battery during a first operating condition; and wherein said electronically controlled switch isolates said first battery from said second battery upon startup of said internal combustion engine.