EP0221729A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Motor vehicle driving apparatus
Assignee: Isuzu Motors Ltd
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Filing: 1986-10-22
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Granted: —
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Expires: 2006-10-22
Abstract
Abstract The wheels (9) of a motor vehicle are driven by AC electric motors (8) which are supplied with power from an AC generator (2) driven by an engine (1). The power from the generator (2) is rectified by a rectifier (3) and is then converted to AC by an inverter (4). The inverter (4) is controlled by a controller (5) in dependence upon the depression of an accelerator pedal (6). Power is supplied to the motors (8) from the inverter (4) at a frequency which is thus determined by the operation of the accelerator pedal (6) and thus the speed of the motors (8) and therefore of the vehicle is determined by the accelerator pedal (6). To provide regenerative braking, the motors (8) and therefore of the vehicle is determined by the accelerator pedal (6). To provide regenerative under the control of a regulator (10).
Inventors
- 👤 Hideo Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 14:07
CPC Classifications
B; B60; B60K; B60K6/00; B60K6/20; B60K6/42; B60K6/46; B60L; B60L7/00; B60W; B60W20/00; B60W20/10; B60K7/00; B60K7/0007; B60L50/00; B60L50/50; B60L50/60; B60L50/61; B60L50/62; B60L7/10; B60L7/14; B60W10/00; B60W10/04; B60W10/08; B60W10/24; B60W10/26; B60K2007/0092; B60L2210/00; B60L2210/20; B60L2220/00; B60L2220/40; B60L2220/44; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/62; Y02T10/64; Y02T10/70; Y02T10/7072; Y02T10/72
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
Apparatus for driving a motor vehicle comprising an electric motor (8,18) supplied with electric power from a generator (2) coupled to an engine (1) characterised in that the generator (2) is an AC generator; a rectifier (3) is electrically connected to the generator (2); means (4,14) for causing the power supplied by the rectifier (3) to have a variable frequency or voltage is electrically connected to the rectifier (3); the motor (8,18) is electrically connected to the means (4,14) and is arranged to be coupled mechanically to a wheel (9) of the vehicle; a controller (5,15) is provided for controlling the frequency or voltage of the power supplied by the means (4,14) to the motor (8,18) in response to the operation of a vehicle accelerator (6); and a regulator (10,20) is provided for controlling electric power which is generated by the motor (8, 18) which, in use, operates as a generator providing regenerative braking of the vehicle, the regulator (10, 20) charging a battery (11) with the controlled power from the motor (8,18).
Claim 2
Dependent Claim
173 words
Apparatus for driving a motor vehicle comprising an electric motor (8,18) supplied with electric power from a generator (2) coupled to an engine (1) characterised in that the generator (2) is an AC generator; a rectifier (3) is electrically connected to the generator (2); means (4,14) for causing the power supplied by the rectifier (3) to have a variable frequency or voltage is electrically connected to the rectifier (3); the motor (8,18) is electrically connected to the means (4,14) and is arranged to be coupled mechanically to a wheel (9) of the vehicle; a controller (5,15) is provided for controlling the frequency or voltage of the power supplied by the means (4,14) to the motor (8,18) in response to the operation of a vehicle accelerator (6); and a regulator (10,20) is provided for controlling electric power which is generated by the motor (8, 18) which, in use, operates as a generator providing regenerative braking of the vehicle, the regulator (10, 20) charging a battery (11) with the controlled power from the motor (8,18).
Claim 3
Dependent Claim
21 words
Apparatus according to claim 1, in which the motor is an AC motor (8) and the means is an inverter (4).
Claim 4
Dependent Claim
22 words
Apparatus according to claim 1, in which the motor is a DC motor (18) and the means is a control unit (14).
Claim 5
Dependent Claim
50 words
Apparatus according to any one of claims 1 to 3, further including means (CS) for detecting a drop in the terminal voltage of the battery (11) and means for causing the regulator (10,20) to charge the battery (11) when the terminal voltage of the battery drops below a predetermined level.
Claim 6
Dependent Claim
18 words
Apparatus according to any one of the preceding claims, in which the engine (1) is a gas turbine.
Claim 7
Dependent Claim
21 words
Apparatus according to any one of claims 1 to 4, in which the engine (1) is a reciprocating internal combustion engine.
References Cited (Backward Citations)
US4119861A
Cited
US4313080A
Cited
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