# US 2014/0195083 A1 · Electromotive-vehicular motor control apparatus

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- Number: US 2014/0195083 A1
- Document ID: US20140195083A1
- Status: Published application
- Kind: A1
- Application number: 13/983,999
- Filed: 2012-07-24
- Published: 2014-07-10
- Earliest claimed: 2011-09-13
- Assignees: Honda Motor Co., Ltd.
- Inventors: Shinya Kobayashi; Dai Saitoh
- Web page: https://patentgrep.com/patent/US20140195083A1

## CPC

- B60L 5/00: Current collectors for power supply lines of electrically-propelled vehicles (current collectors in general H01R41/00)
- B60L 15/20: for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- H02P 6/08: Arrangements for controlling the speed or torque of a single motor (H02P6/10, H02P6/28 take precedence)
- H02P 23/20: Controlling the acceleration or deceleration
- B60L 2240/423: Torque
- H02P 6/06: Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
- Y02T 10/64: Electric machine technologies in electromobility
- Y02T 10/72: Electric energy management in electromobility
- Y10T 74/19251: Control mechanism
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

This electromotive-vehicular motor control apparatus includes: a motor; a power drive unit; a torque control unit that controls an output torque of the motor; an electric current control unit; a number-of-revolutions detection unit; a target number-of-revolutions setting unit; a number-of-revolutions deviation calculation unit; and a removal unit that outputs a signal of a second number-of-revolutions deviation, in which the torque control unit controls the output torque based on the second number-of-revolutions deviation that has been output from the removal unit.

## Claims

### Claim 1

An electromotive-vehicular motor control apparatus, comprising:
a motor that drives wheels;
a power drive unit that controls the motor;
a torque control unit that controls an output torque of the motor according to a request torque;
an electric current control unit that controls an electric-power conversion operation of the power drive unit based on a torque command that is output from the torque control unit and on a detection signal from a current sensor that detects an electric current passed from the power drive unit to the motor;
a number-of-revolutions detection unit that detects a number of revolutions of the motor and outputs a signal of a detected number of revolutions, which is a detected result;
a target number-of-revolutions setting unit that sets a target number of revolutions for suppressing a torque fluctuation of the motor by using the detected number of the revolutions that has been output from the number-of-revolutions detection unit;
a number-of-revolutions deviation calculation unit that calculates a first number-of-revolutions deviation that is a deviation between the target number of the revolutions that has been set by the target number-of-revolutions setting unit and the detected number of the revolutions; and
a removal unit that outputs a signal of a second number-of-revolutions deviation obtained by removing only a deviation component generated due to a transient state of the number of the revolutions from the first number-of-revolutions deviation that has been calculated by the number-of-revolutions deviation calculation unit, wherein
the torque control unit controls the output torque based on the second number-of-revolutions deviation that has been output from the removal unit.

### Claim 2 (depends on 1)

The electromotive-vehicular motor control apparatus according to claim 1, wherein
the removal unit comprises:
a treble pass filter that extracts only a frequency component at not less than a predetermined treble frequency from the first number-of-revolutions deviation and outputs a signal of an extraction result.

### Claim 3 (depends on 1)

The electromotive-vehicular motor control apparatus according to claim 1, wherein
the removal unit comprises:
a bass pass filter that extracts only a frequency component at not more than a predetermined bass frequency from the first number-of-revolutions deviation and outputs a signal of an extraction result; and
a difference calculation unit that calculates a difference between a number-of-revolutions deviation of the extraction result that has been output from the bass pass filter and the first number-of-revolutions deviation, and outputs a signal of a calculation result.