Adaptive electric car

• US 20050052080A1
• Filed: 12/17/2003
• Published: 03/10/2005
• Est. Priority Date: 07/31/2002
• Status: Abandoned Application

• Current Assignee: BluWav Systems LLC (Magna International Incorporated)
• Original Assignee: BluWav Systems LLC (Magna International Incorporated)
• Inventors: Maslov, Boris A., Pavlov, Kevin
• Application Number:
  US10/736,901
• Publication Number:
  US 20050052080A1
• Time in Patent Office: Days
• US Class Current: 307/10.100
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: B60L 2210/20 AC to AC converters
• CPC Class Codes: B60L 2210/46 with more than three phases
• CPC Class Codes: B60L 2220/18 Reluctance machines
• CPC Class Codes: B60L 2220/44 Wheel Hub motors, i.e. integrated in the wheel hub
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: B60L 8/00 Electric propulsion with power supply from forces of nature, e.g. sun or wind
• CPC Class Codes: H02K 1/141 consisting of C-shaped cores
• CPC Class Codes: H02K 1/187 to inner stators
• CPC Class Codes: H02K 16/04 Machines with one rotor and two stators
• CPC Class Codes: H02K 21/22 with magnets rotating around the armatures, e.g. flywheel magnetos
• CPC Class Codes: H02K 2213/09 Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators
• CPC Class Codes: H02K 29/00 Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
• CPC Class Codes: H02K 3/28 Layout of windings or of connections between windings windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32
• CPC Class Codes: H02K 7/183 wherein the turbine is a wind turbine adaptation of a wind turbine to an electric generator F03D9/25
• CPC Class Codes: H02M 7/00 Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
• CPC Class Codes: H02P 23/0077 Characterised by the use of a particular software algorithm
• CPC Class Codes: H02P 25/08 Reluctance motors
• CPC Class Codes: H02P 6/34 Modelling or simulation for control purposes
• CPC Class Codes: Y02T 10/64 Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility

Abstract

An adaptive electric car or other vehicle with potentially better performance—power, efficiency, range—than a gasoline vehicle, at a competitive cost. The motor control system can dynamically adapt to the vehicle'"'"'s operating conditions (starting, accelerating, turning, braking, cruising at high speeds) and other inputs and parameters. That consistently provides better performance. Isolating the vehicle'"'"'s motor or generator electromagnetic circuits allows effective control of more independent parameters. That gives great freedom to optimize. Adaptive motors and generators for an electric vehicle are cheaper, smaller, lighter, more powerful, and more efficient than conventional designs. An electric vehicle with in-wheel adaptive motors delivers high power with low unsprung mass and high torque and power-density. Total energy management of the vehicles entire electrical system allows for large-scale optimization. An adaptive architecture improves performance of a wide variety of vehicles, particularly those that need optimal efficiency over a range of operating conditions.

Claims

1. An electric vehicle, comprising:

one or more electric motors and/or generators,

wherein at least one motor and/or generator is an adaptive electric machine comprising two or more electromagnetic circuits that are sufficiently isolated to substantially eliminate electromagnetic and electrical interference between the circuits.

2. The electric car or other electric vehicle of claim 1 which has an internal combustion engine, steam engine, or turbine engine connected to an electric generator and arranged in a series hybrid configuration with the one or more electric motors.

3. The electric car or other electric vehicle of claim 1 which has a fuel cell arranged in a series hybrid configuration with the one or more electric motors.

4. The electric car or other electric vehicle of claim 1 which has an internal combustion engine, steam engine, or turbine engine arranged in a parallel series hybrid configuration with the one or more electric motors.

5. An electric car or other electric vehicle with one or more electric motors to move the vehicle,

where the torque/speed/efficiency characteristics of at least one electric motor can be dynamically adapted to varying torque, speed, acceleration, braking and other operating conditions of the vehicle to optimize vehicle performance.

6. The electric car or other electric vehicle of claim 5 which has an internal combustion engine, steam engine, or turbine engine arranged in a series or parallel hybrid configuration with the one or more electric motors.

7. The electric car or other electric vehicle of claim 5 which has an internal combustion engine, steam engine, or turbine engine connected to an electric generator arranged in a series hybrid configuration with the one or more electric motors.

8. An electric car or other electric vehicle with an in-wheel electric motor in at least one wheel of the vehicle including vehicles with a motor at each wheel of the vehicle, each motor with its own motor controller and power electronics.

9. The electric car or other electric vehicle of claim 8 with a separate battery for each electric motor.

10. The electric car or other electric vehicle of claim 8 with:

a separate battery for each electric motor,

a gasoline engine, steam engine, or turbine engine/generator module to produce electrical power to charge the batteries,

a user interface to get input from the driver of the vehicle, and

a central controller that controls operation of the motors, batteries, and gasoline engine, steam engine, or turbine engine/generator module.

11. A method of propelling a car or other vehicle with one or more electric motors, the steps including:

periodically sensing one or more driver inputs, sensor inputs (for each motor system) and/or sensor inputs (for vehicle), and

allowing the torque/speed/efficiency characteristics of at least one motor to be dynamically adapted to changes in the one or more inputs and/or sensor inputs.