EP0367406A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Turbocharger control system
Assignee: Isuzu Motors Ltd
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Filing: 1989-10-03
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Granted: —
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Expires: 2009-10-03
Abstract
Abstract A turbocharger control system controls a turbocharger (2) associated with an engine (1) mounted on a motor vehicle, the turbocharger (2) having a rotary electric machine (3) mounted on the rotatable shaft (23) thereof. When it is determined that the motor vehicle is about to start, the rotary electric machine (23) is operated as an electric motor to effect a flying boost increase before the accelerator pedal (10) is depressed. The boost pressure of the turbocharger (3) is therefore increased to increase the response of acceleration of the motor vehicle to the depression of the accelerator pedal when the motor vehicle is started.
Inventors
- 👤 Shinji Isuzu Fujisawa Dai 11 Apt. A 202 Hara
- 👤 Yoshihisa Isuzu Totsuka Koizumi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 06:00
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/22; F02B37/225; F02B37/04; F02B37/10; F02B37/11; F02B37/14; F02B39/00; F02B39/02; F02B39/08; F02B39/10; F02D; F02D41/00; F02D41/0002; F02D41/0007; F02B1/00; F02B1/02; F02B1/04; F02D2250/00; F02D2250/18; F02D2250/22; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
196 words
A control system, for controlling a turbocharger (2) having a turbine (22) operable by exhaust gases discharged from an engine (1) mounted on a motor vehicle, a compressor (21) coupled to the turbine (22) by a rotatable shaft (23), and a rotary electric machine (3) mounted on the rotatable shaft (23), the control system comprising: an engine speed sensor (13) for detecting the rotational speed of the engine (1); a clutch operation sensor (41) for detecting disengagement of a clutch (4); a gear position sensor (51) for detecting a gear position of a transmission (5) of the motor vehicle; a vehicle speed sensor (61) for detecting the speed at which the motor vehicle is running; and, control means (9) responsive to signals from the engine speed sensor (13), the clutch operation sensor (41), the gear position sensor (50), and the vehicle speed sensor (61), for operating the rotary electric machine (3) as an electric motor when the rotational speed of the engine (1) is lower than a predetermined speed, the clutch (4) is disengaged, the gear position of the transmission (5) is a vehicle starting position, and the vehicle speed is lower than a predetermined speed.
Claim 2
Dependent Claim
196 words
A control system, for controlling a turbocharger (2) having a turbine (22) operable by exhaust gases discharged from an engine (1) mounted on a motor vehicle, a compressor (21) coupled to the turbine (22) by a rotatable shaft (23), and a rotary electric machine (3) mounted on the rotatable shaft (23), the control system comprising: an engine speed sensor (13) for detecting the rotational speed of the engine (1); a clutch operation sensor (41) for detecting disengagement of a clutch (4); a gear position sensor (51) for detecting a gear position of a transmission (5) of the motor vehicle; a vehicle speed sensor (61) for detecting the speed at which the motor vehicle is running; and, control means (9) responsive to signals from the engine speed sensor (13), the clutch operation sensor (41), the gear position sensor (50), and the vehicle speed sensor (61), for operating the rotary electric machine (3) as an electric motor when the rotational speed of the engine (1) is lower than a predetermined speed, the clutch (4) is disengaged, the gear position of the transmission (5) is a vehicle starting position, and the vehicle speed is lower than a predetermined speed.
Claim 3
Dependent Claim
102 words
A control system according to claim 1, further comprising: intake restriction means (8,81) for restricting the rate of air flow into the turbocharger (2), the intake restriction means (8,81) being disposed in an intake pipe (121) for introducing air into the compressor (21) of the turbocharger; wherein the control means (9) is responsive to said signals for controlling the variable intake restriction means (8,81) when the rotational speed of the engine is lower than a predetermined speed, the clutch is disengaged, the gear position of the transmission is a vehicle starting position, and the vehicle speed is lower than a predetermined speed.
References Cited (Backward Citations)
No citation records indexed.
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