MOTOR DESIGN METHOD, MOTOR DESIGNED BY MOTOR DESIGN METHOD, AND ELECTRIC VEHICLE PROVIDED WITH MOTOR

• US 20130179133A1
• Filed: 10/19/2011
• Published: 07/11/2013
• Est. Priority Date: 10/19/2010
• Status: Active Grant

• Current Assignee: Mitsubishi Heavy Industries, Ltd.
• Original Assignee: Mitsubishi Heavy Industries, Ltd.
• Inventors: Fujinaga, Takashi, Mitsuyama, Yasushi, Hashimoto, Hideki, Okada, Shinji
• Granted Patent: US 9,454,638 B2
• Time in Patent Office: Days
• US Class Current: 703/2
• CPC Class Codes: B60L 15/2045 for optimising the use of energy
• CPC Class Codes: B60L 2200/18 Buses
• CPC Class Codes: B60L 2220/44 Wheel Hub motors, i.e. integrated in the wheel hub
• CPC Class Codes: B60L 2240/12 Speed
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 2240/423 Torque
• CPC Class Codes: B60L 2240/425 Temperature
• CPC Class Codes: B60L 2240/429 Current
• CPC Class Codes: B60L 2240/547 Voltage
• CPC Class Codes: B60L 3/0061 relating to electrical machines
• CPC Class Codes: B60L 3/12 Recording operating variables ; Monitoring of operating variables
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: B60W 10/08 including control of electric propulsion units, e.g. motors or generators
• CPC Class Codes: B60W 2300/10 Buses
• CPC Class Codes: B60Y 2304/00 Optimising design; Manufacturing; Testing
• CPC Class Codes: G06F 30/15 Vehicle, aircraft or watercraft design
• CPC Class Codes: H02K 15/00 Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
• 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 10/72 : Electric energy management in electromobility

Abstract

A motor design method, a motor (11) designed by the motor design method, and an electric vehicle (10) provided with the motor (11) include a first calculation step of obtaining a set of a number of revolutions required to achieve a predetermined running pattern and a torque required to achieve the predetermined running pattern, a second calculation step of selecting a motor efficiency corresponding to the number of revolutions and the torque from any one of motor characteristic curves, a third calculation step of obtaining a work amount from the number of revolutions and the torque and obtaining power consumption by dividing the work amount by the motor efficiency, and a fourth calculation step of obtaining a sum of the power consumption by repeating the first calculation step, the second calculation step, and the third calculation step over the entire running time.

Claims

1. A motor design method, comprising:

a first calculation step of obtaining a set of a number of revolutions required to achieve a predetermined running pattern and a torque required to achieve the predetermined running pattern;

a second calculation step of selecting a motor efficiency corresponding to the number of revolutions and the torque from any one of motor characteristic curves;

a third calculation step of obtaining a work amount from the number of revolutions and the torque and obtaining power consumption by dividing the work amount by the motor efficiency; and

a fourth calculation step of obtaining a sum of the power consumption by repeating the first calculation step, the second calculation step, and the third calculation step over the entire running time.

2. A motor designed by the motor design method according to claim 1, wherein the motor has characteristics selected in the first calculation step, the second calculation step, the third calculation step, and the fourth calculation step.

3. An electric vehicle provided with the motor designed by the motor design method according to claim 1.