Temperature control of exhaust gas catalytic converters in vehic

Details Temperature control of exhaust gas catalytic converters in vehic Temperature control of exhaust gas catalytic converters in vehic

1998-07-02

2000-05-02

Enad, Elvin

Prime-mover dynamo plants

Electric control

Engine control

290 40R, 290 40A, 290 40B, 290 40D, 290 40F, 290 51, F02N 1106

Patent

active

060576057

ABSTRACT:
A vehicle powertrain comprises an internal combustion engine 10 and an electric motor 14 capable of producing driving or braking torque for the vehicle. The exhaust system for the engine 10 includes a catalytic converter 22. A control unit 18 monitors the temperature of the catalytic converter 22 using a sensor 32 and controls the driving or braking torque produced by the electric motor 14 so that the load on the engine produces exhaust gases of a suitable temperature to keep the catalytic converter within its optimum operating temperature range while maintaining the desired total output of torque from the powertrain.

REFERENCES:
patent: 5323868 (1994-06-01), Kawashima
patent: 5345761 (1994-09-01), King et al.
patent: 5545928 (1996-08-01), Kotani
patent: 5588498 (1996-12-01), Kitada
patent: 5785137 (1998-07-01), Reuyl
patent: 5826671 (1998-10-01), Nakae et al.
patent: 5934073 (1999-08-01), Gieshoff et al.

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