EP0212988A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for controlling a turbocharger of an internal combustion engine
Assignee: Hitachi Ltd
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Filing: 1986-08-28
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Granted: —
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Expires: 2006-08-28
Abstract
Abstract An internal combustion engine (8) has a turbocharger (1) incorporating a rotary electric machine which can be operated as a motor or as a generator. The machine is operated as a motor to increase the boost pressure when the load on the engine is high and the engine speed low and as a generator to charge a battery (20) when the engine speed is higher and the load low. The machine is controlled by an electronic controller (14) acting through a converter (21) in dependence upon signals received from a fuel flow rate sensor (17), and engine speed sensor (18) which together in effect sense the load on the engine, a boost pressure sensor (13), an electric power sensor (23) and an electric power meter (24). The controller (14) also controls the fuel supply rate to the engine by means of a unit (16) in an injection pump (15).
Inventors
- 👤 Hideo Kawamura
- 👤 Katsuyuki Tamai
- 👤 Shigeki Saito
- 👤 Toshihiro Yamanaka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 03:03
CPC Classifications
F; F02; F02B; F02B37/00; F02B37/12; F02B37/14; F02B37/04; F02B37/10; F02B39/00; F02B39/02; F02B39/08; F02B39/10; F02B63/00; F02B63/04; F02D; F02D23/00; F02D23/02; F02D41/00; F02D41/02; F02D41/04; F02D41/08; F02D41/083; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
' Apparatus for controlling a turbocharger (1) of an internal combustion engine (8), the turbocharger (1) including a rotary electric machine (MG), which is operable as a motor or as a generator, having a rotor (10) mounted on a turbine shaft (6) of the turbocharger (1), characterised by:- electric power detecting means (23), which detects an electric power output from the machine (MG) and generates an electric power output signal; fuel supply means (15) for supplying fuel to the internal combustion engine (8); fuel flow rate control means (16) associated with the fuel supply means (15) for controlling the rate of fuel flow from said fuel supply means (15); and, control means (14) for controlling the rate of fuel flow from said fuel flow rate control means (16) in response to the electric power output signal from said electric power detecting means (23).
Claim 2
Dependent Claim
143 words
' Apparatus for controlling a turbocharger (1) of an internal combustion engine (8), the turbocharger (1) including a rotary electric machine (MG), which is operable as a motor or as a generator, having a rotor (10) mounted on a turbine shaft (6) of the turbocharger (1), characterised by:- electric power detecting means (23), which detects an electric power output from the machine (MG) and generates an electric power output signal; fuel supply means (15) for supplying fuel to the internal combustion engine (8); fuel flow rate control means (16) associated with the fuel supply means (15) for controlling the rate of fuel flow from said fuel supply means (15); and, control means (14) for controlling the rate of fuel flow from said fuel flow rate control means (16) in response to the electric power output signal from said electric power detecting means (23).
Claim 3
Dependent Claim
90 words
Apparatus according to Claim 1, further including a flow rate sensor (17) for detecting the rate of fuel flow to generate a signal indicative of the detected rate of fuel flow, a rotation sensor (18) for detecting the speed rotation of the internal combustion engine (8) to generate a signal indicative of the detected speed of rotation, and means (14) for ascertaining whether the machine (MG) is operating as a motor or as a generator based on the signals for said flow rate sensor (17) and said rotation sensor (18).
Claim 4
Dependent Claim
118 words
Apparatus for controlling a turbocharger (1) of an internal combustion engine (8), the turbocharger (1) including a rotary electric machine (MG) which is operable as a motor or as a generator having a rotor (10) mounted on a turbine shaft (6) of the turbocharger (1), characterised by:- electric power integrating means (24), which detects input electric power supplied to the machine (MG) and calculates an integrated value of the input electric power to generate a signal indicative of the integrated value; a battery (20) for supplying electric power to the machine (MG); and, means (14, 19) for controlling the electric power supplied from said battery (20) in response to the signal from the electric power integrating means (24).
Claim 5
Dependent Claim
118 words
Apparatus for controlling a turbocharger (1) of an internal combustion engine (8), the turbocharger (1) including a rotary electric machine (MG) which is operable as a motor or as a generator having a rotor (10) mounted on a turbine shaft (6) of the turbocharger (1), characterised by:- electric power integrating means (24), which detects input electric power supplied to the machine (MG) and calculates an integrated value of the input electric power to generate a signal indicative of the integrated value; a battery (20) for supplying electric power to the machine (MG); and, means (14, 19) for controlling the electric power supplied from said battery (20) in response to the signal from the electric power integrating means (24).
Claim 6
Dependent Claim
96 words
Apparatus according to Claim - 3, further including a flow rate sensor (17), for detecting the rate of fuel flow to the engine (8) to generate a signal indicative of the detected rate of fuel flow, a rotation sensor (18) for detecting the speed of rotation of the internal combustion engine (8) to generate a signal indicative of the detected speed of rotation, and means (14) for ascertaining whether the machine (MG) is operating as a motor or as a generator based on the signals from said flow rate sensor (17) and said rotation sensor (18).
References Cited (Backward Citations)
No citation records indexed.
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