Drive system for a motor vehicle
First Claim
1. A drive arrangement for a motor vehicle, comprising:
- an accelerator pedal;
an internal combustion engine having a crankshaft;
an electronic generator arrangement connected with the crankshaft of the internal combustion engine so as to be fixed with respect to rotation relative thereto;
at least one electric motor provided so as to be powered by the generator arrangement and so as to drive the motor vehicle; and
electronic control means for controlling at least one of an electrical output generated by the generator arrangement and an electrical output of the generator arrangement received by the electric motor as a function of accelerator pedal position, the electric motor that drives the motor vehicle being provided so as to work as a generator in thrust operation of the motor vehicle and the generator arrangement being provided so as to work as a motor in one of when starting the internal combustion engine and during thrust operation of the motor vehicle and drives the internal combustion engine, the electronic control means being provided so that during the motor operation of the generator arrangement, the control means performs at least one of detecting an instantaneous curve of current from the generator arrangement when ignition is turned on and detecting fuel supplied to the internal combustion engine, depending upon this detected information the control means determines an instantaneous curve of motoring torque produced by the generator arrangement depending on the crankshaft angle of the internal combustion engine, the control means further detects deviations of at least one of the value and the curve of the determined motoring torque from at least one of predetermined reference values and a reference curve, and generates a control signal representing an operating disturbance depending on at least one of the value and the curve of the deviation.
1 Assignment
0 Petitions
Accused Products
Abstract
The drive arrangement for a motor vehicle includes an internal combustion engine (1) with at least one controlling element (29), an electric generator arrangement (3) driven by the internal combustion engine (1), at least one electric motor (11) which is powered by the generator arrangement (3) and drives the motor vehicle, and an electronic control unit (19) which, depending on the setting of an accelerator pedal (23), controls at least an actuating drive (27) and the electrical output generated by the generator arrangement (3) and/or the electrical output received by the electric motor (11). The arrangement contains a device for detecting an actual value of the speed of the internal combustion engine (1) and component for detecting an actual value of the electrical output generated by the generator arrangement (3). The control unit (19) has a speed regulating device (33) that maintains the actual speed at a given reference speed and an output regulating component (37) which maintains the actual electrical output at a given reference output. A data storage (31) in which performance data for combinations of data for the reference output with data for the reference speed and/or data for the adjustment of at least the actuating drive (27) are stored. In the event of dragging or motoring operation of the generator arrangement (3) and internal combustion engine (1), the control unit (19) detects the torque curve depending on the current of the generator arrangement (3) depending on the instantaneous angular position of the crankshaft and diagnoses operating errors and/or the state of the engine depending on the torque curve.
48 Citations
15 Claims
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1. A drive arrangement for a motor vehicle, comprising:
- an accelerator pedal;
an internal combustion engine having a crankshaft;
an electronic generator arrangement connected with the crankshaft of the internal combustion engine so as to be fixed with respect to rotation relative thereto;
at least one electric motor provided so as to be powered by the generator arrangement and so as to drive the motor vehicle; and
electronic control means for controlling at least one of an electrical output generated by the generator arrangement and an electrical output of the generator arrangement received by the electric motor as a function of accelerator pedal position, the electric motor that drives the motor vehicle being provided so as to work as a generator in thrust operation of the motor vehicle and the generator arrangement being provided so as to work as a motor in one of when starting the internal combustion engine and during thrust operation of the motor vehicle and drives the internal combustion engine, the electronic control means being provided so that during the motor operation of the generator arrangement, the control means performs at least one of detecting an instantaneous curve of current from the generator arrangement when ignition is turned on and detecting fuel supplied to the internal combustion engine, depending upon this detected information the control means determines an instantaneous curve of motoring torque produced by the generator arrangement depending on the crankshaft angle of the internal combustion engine, the control means further detects deviations of at least one of the value and the curve of the determined motoring torque from at least one of predetermined reference values and a reference curve, and generates a control signal representing an operating disturbance depending on at least one of the value and the curve of the deviation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- an accelerator pedal;
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15. A drive arrangement for a motor vehicle, comprising:
- an internal combustion engine having a crankshaft;
at least one controlling element that affects at least one of engine output, engine torque and engine speed;
an actuating drive for controlling the at least one controlling element;
an electric generator arrangement connected with the crankshaft of the internal combustion engine so as to be fixed with respect to rotation relative thereto;
at least one electric motor which is powered by the generator arrangement and drives the motor vehicle;
an accelerator pedal;
electronic control means for controlling at least the actuating drive and at least one of electrical output generated by the generator arrangement and electrical output received by the electric motor as a function of the positions of the accelerator pedal;
means for detecting an actual value of the speed of one of the internal combustion engine and the generator arrangement;
a data storage for storing reference values; and
means for detecting an actual value of one or the electrical output generated by the generator arrangement and the electrical output received by the electric motor, the electronic control means including speed regulating means for maintaining the actual speed at a given reference speed on an average with respect to time, and output regulating means for maintaining the actual electrical output at a given reference output on an average with respect to time, the electronic control means detecting an instantaneous curve of current of the generator arrangement depending on an instantaneous angular position of the crankshaft of the internal combustion engine, the electronic control means further determining the instantaneous curve of the torque of the internal combustion engine as a function of the electric current depending on the angular position of the crankshaft and comparing it with the reference values for at least one of magnitude and the instantaneous curve of the torque which are stored in the data storage, the control means still further generating a control signal which represents all operating disturbance when deviations with respect to one of a predetermined quantity and predetermined curve occur.
- an internal combustion engine having a crankshaft;
Specification