HYBRID VEHICLE
First Claim
1. A hybrid vehicle having a cruise power requirement and a maximum power requirement, comprising:
- a wheeled frame having at least two pairs of wheels including a first pair of wheels and a second pair of wheels;
a heat engine having a heat engine power corresponding to the cruise power requirement of the vehicle, the heat engine being drivingly coupled to the first pair of wheels;
a first electric machine coupled to the heat engine, and having a generator capacity corresponding to the heat engine power;
a second electric machine having an electric motor power being at least equal to the heat engine power, the second electric machine being drivingly coupled to the second pair of wheels; and
a battery connected to both the first electric machine and the second electric machine.
1 Assignment
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Accused Products
Abstract
The hybrid vehicle can have a heat engine driving a first pair of wheels and an electric motor on another pair of wheels. The electric motor is selected to have a greater power than the heat engine, such as corresponding to the maximum power requirement of the vehicle, whereas the heat engine can have a power corresponding to a cruise power requirement of the vehicle. A generator is coupled to the heat engine and can be designed to have a generator capacity corresponding to the power of the heat engine. The electric motor can be used for propulsion during city driving conditions, and the heat engine can be used for propulsion during long range highway conditions, for instance. The design can be considered a power split through the road approach.
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Citations
39 Claims
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1. A hybrid vehicle having a cruise power requirement and a maximum power requirement, comprising:
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a wheeled frame having at least two pairs of wheels including a first pair of wheels and a second pair of wheels; a heat engine having a heat engine power corresponding to the cruise power requirement of the vehicle, the heat engine being drivingly coupled to the first pair of wheels; a first electric machine coupled to the heat engine, and having a generator capacity corresponding to the heat engine power; a second electric machine having an electric motor power being at least equal to the heat engine power, the second electric machine being drivingly coupled to the second pair of wheels; and a battery connected to both the first electric machine and the second electric machine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of operating a hybrid vehicle having a heat engine having a heat engine power and being drivingly coupled to a first pair of wheels of the vehicle;
- a first electric machine coupled to the heat engine, and having a generator capacity;
a second electric machine having an electric motor power higher than the heat engine power, the second electric machine being drivingly coupled to a second pair of wheels of the vehicle; and
a battery connected to both the first electric machine and the second electric machine, and further comprising a control system, the method comprising;operating the control system in a first mode upon determining highway driving conditions, in which the first electric machine is controlled in a manner allowing the heat engine to drive the wheels; and operating the control system in a second mode in which the second electric machine is controlled to drive the wheels while the heat engine does not mechanically drive the wheels. - View Dependent Claims (22, 23, 24, 25, 26)
- a first electric machine coupled to the heat engine, and having a generator capacity;
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27-30. -30. (canceled)
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31. A hybrid propulsion system for a vehicle, the propulsion system comprising:
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a heat engine having a heat engine power and being drivingly coupled to a first pair of wheels of the vehicle; a first electric machine coupled to the heat engine, and having a generator capacity; a second electric machine having an electric motor power higher than the heat engine power, the second electric machine being drivingly coupled to a second pair of wheels of the vehicle; and a battery connected to both the first electric machine and the second electric machine. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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Specification