Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009 Directives for standardization - Part 1: Structure and drafting of standards.
This standard was proposed by and is under the jurisdiction of SAC/TC 114 National Technical Committee of Auto Standardization.
Permanent magnet synchronous drive motor system for electric vehicles
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, marking and labeling of permanent magnet synchronous drive motor system for electric vehicles.
This standard is applicable to the permanent magnet synchronous drive motor system for electric vehicles.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 755 Rotating electrical machines - Rating and performance
GB/T 2900.33 Electrotechnical terminology - Power electronics
GB/T 18488.1-2015 Drive motor system for electric vehicles - Part 1: Specification
GB/T 18488.2-2015 Drive motor system for electric vehicles - Part 2: Test methods
GB/T 19596 Terminology of electric vehicles
GB/T 29307 The reliability test methods of drive motor system for electric vehicles
3 Terms and definitions
For the purposes of this standard, the terms and definitions given in GB/T 2900.25, GB/T 2900.33, GB/T 18488.1-2015 and GB/T 19596, as well as the following apply.
3.1
permanent magnet synchronous drive motor system
system consisting of a permanent magnet synchronous drive motor (hereinafter referred to as drive motor), a motor controller (hereinafter referred to as controller), a connection cable, and an auxiliary device necessary for the operation of the drive motor system (hereinafter referred to as drive motor system)
3.2
no-load back electromotive force
r.m.s. value of the open-circuit electromotive force between any two phases in case the drive motor rotates at the specified speed and the temperature of permanent magnet, referred to as back electromotive force
3.3
torque ripple
torque fluctuation caused by cogging torque, undesired back electromotive force waveform, feedback element error, electrical interference, control error, etc.; its value is the difference between the maximum and the minimum values of the torque along the peripheral direction
3.4
no-load loss of drive motor system
power consumed by the drive motor system in case the drive motor operates at a specified speed and no torque is output
3.5
no-load loss of motor
power consumed by the drive motor in case all windings are at open-circuit state and the motor is driven at a specified speed
3.6
steady state short-circuit current
r.m.s. value of the current in case outgoing lines of all windings of the drive motor are short connected and the motor driven at a specified speed
3.7
magnet demagnetization
irreversible demagnetization of permanent magnets
3.8
declared value of no-load back electromotive force
average of the r.m.s. values of no-load back electromotive force of at least 4 drive motors (two of which have been subjected to type inspection) at the specified speed and the temperature of permanent magnet
3.9
declared value of steady state short-circuit current
average of the values of steady-state short-circuit current of at least 4 drive motors (two of which have been subjected to type inspection) at the specified speed and the temperature of permanent magnet
4 Technical requirements
4.1 General
The drive motor system shall meet the requirements of GB/T 18488.1-2015 and the following.
4.2 Initial position angle
In case the drive motor is equipped with a position sensor, the relative angular relationship between the waveform phase of the back electromotive force of the drive motor and the waveform phase fed back by the position sensor shall be in accordance with the requirements of the product technical documentation.
4.3 Limit of maximum no-load back electromotive force
The back electromotive force of the drive motor at the maximum working speed shall not exceed the value specified in the product technical documentation.
4.4 Tolerance of no-load back electromotive force
Between the drive motors with the same specification and model, the deviation of the back electromotive force at the rated speed from the declared value shall be no more than ± 5%.
4.5 Cogging torque
The cogging torque shall not exceed the value specified in the product technical documentation.
4.6 Torque ripple
The torque ripple shall not exceed the value specified in the product technical documentation.
4.7 No-load loss of drive motor system
The no-load loss of the drive motor system shall not exceed the value specified in the product technical documentation.
4.8 No-load loss of motor
The no-load loss of motor shall not exceed the value specified in the product technical documentation.
4.9 Limit of steady state short-circuit current
The steady state short-circuit current shall not exceed the value specified in the product technical documentation.
4.10 Tolerance of steady state short-circuit current
Between the drive motors with the same specification and model, the deviation of the steady state short-circuit current measured at the specified speed from the typical value shall be no more than ± 5%.
4.11 Permanent magnet aging and demagnetization
After the reliability test, the ratio of the back electromotive force decline of the drive motor caused by the permanent magnet aging shall not exceed the value specified in the product technical documentation. Other methods may also be adopted through negotiation between the supplier and the purchaser.
5 Test methods
5.1 General
Except for the test methods specified below, the test methods for other test items shall comply with GB/T 18488.2-2015.
Unless otherwise specified, the accuracy requirements of measuring instruments shall comply with GB/T 18488.2-2015.
5.2 Initial position angle
Drive the drive motor to the speed specified in the product technical documentation to inspect the relative angular relationship between the waveform phase of the position sensor and that of the back electromotive force.
For end-of-manufacturing inspection in mass production, the initial position angle may be inspected by using other methods agreed by the supplier and the purchaser through negotiation.
5.3 Limit of maximum no-load back electromotive force
The test shall be carried out under actual cold conditions, and the ambient temperature at the time of the test must be recorded.
Drive the drive motor to the maximum working speed and measure the back electromotive force.
The value of the back electromotive force mentioned above shall be corrected to 20℃ as per the method agreed by the supplier and the purchaser through negotiation.
5.4 Tolerance of no-load back electromotive force
The test shall be carried out under actual cold conditions, and the ambient temperature at the time of the test must be recorded.
Drive the drive motor to the rated speed and measure the back electromotive force.
The temperature correction method is the same as those specified in 5.3.
For end-of-manufacturing inspection in mass production, it may be carried out using other methods which reflect the tolerance of the no-load back electromotive force and are agreed by the supplier and the purchaser through negotiation.
Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Technical requirements 5 Test methods 6 Inspection rules 7 Marking and identification Annex A (Normative) Inspection classification
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009 Directives for standardization - Part 1: Structure and drafting of standards.
This standard was proposed by and is under the jurisdiction of SAC/TC 114 National Technical Committee of Auto Standardization.
Permanent magnet synchronous drive motor system for electric vehicles
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, marking and labeling of permanent magnet synchronous drive motor system for electric vehicles.
This standard is applicable to the permanent magnet synchronous drive motor system for electric vehicles.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB 755 Rotating electrical machines - Rating and performance
GB/T 2900.25 Electrotechnical terminology - Rotating electrical machines
GB/T 2900.33 Electrotechnical terminology - Power electronics
GB/T 18488.1-2015 Drive motor system for electric vehicles - Part 1: Specification
GB/T 18488.2-2015 Drive motor system for electric vehicles - Part 2: Test methods
GB/T 19596 Terminology of electric vehicles
GB/T 29307 The reliability test methods of drive motor system for electric vehicles
3 Terms and definitions
For the purposes of this standard, the terms and definitions given in GB/T 2900.25, GB/T 2900.33, GB/T 18488.1-2015 and GB/T 19596, as well as the following apply.
3.1
permanent magnet synchronous drive motor system
system consisting of a permanent magnet synchronous drive motor (hereinafter referred to as drive motor), a motor controller (hereinafter referred to as controller), a connection cable, and an auxiliary device necessary for the operation of the drive motor system (hereinafter referred to as drive motor system)
3.2
no-load back electromotive force
r.m.s. value of the open-circuit electromotive force between any two phases in case the drive motor rotates at the specified speed and the temperature of permanent magnet, referred to as back electromotive force
3.3
torque ripple
torque fluctuation caused by cogging torque, undesired back electromotive force waveform, feedback element error, electrical interference, control error, etc.; its value is the difference between the maximum and the minimum values of the torque along the peripheral direction
3.4
no-load loss of drive motor system
power consumed by the drive motor system in case the drive motor operates at a specified speed and no torque is output
3.5
no-load loss of motor
power consumed by the drive motor in case all windings are at open-circuit state and the motor is driven at a specified speed
3.6
steady state short-circuit current
r.m.s. value of the current in case outgoing lines of all windings of the drive motor are short connected and the motor driven at a specified speed
3.7
magnet demagnetization
irreversible demagnetization of permanent magnets
3.8
declared value of no-load back electromotive force
average of the r.m.s. values of no-load back electromotive force of at least 4 drive motors (two of which have been subjected to type inspection) at the specified speed and the temperature of permanent magnet
3.9
declared value of steady state short-circuit current
average of the values of steady-state short-circuit current of at least 4 drive motors (two of which have been subjected to type inspection) at the specified speed and the temperature of permanent magnet
4 Technical requirements
4.1 General
The drive motor system shall meet the requirements of GB/T 18488.1-2015 and the following.
4.2 Initial position angle
In case the drive motor is equipped with a position sensor, the relative angular relationship between the waveform phase of the back electromotive force of the drive motor and the waveform phase fed back by the position sensor shall be in accordance with the requirements of the product technical documentation.
4.3 Limit of maximum no-load back electromotive force
The back electromotive force of the drive motor at the maximum working speed shall not exceed the value specified in the product technical documentation.
4.4 Tolerance of no-load back electromotive force
Between the drive motors with the same specification and model, the deviation of the back electromotive force at the rated speed from the declared value shall be no more than ± 5%.
4.5 Cogging torque
The cogging torque shall not exceed the value specified in the product technical documentation.
4.6 Torque ripple
The torque ripple shall not exceed the value specified in the product technical documentation.
4.7 No-load loss of drive motor system
The no-load loss of the drive motor system shall not exceed the value specified in the product technical documentation.
4.8 No-load loss of motor
The no-load loss of motor shall not exceed the value specified in the product technical documentation.
4.9 Limit of steady state short-circuit current
The steady state short-circuit current shall not exceed the value specified in the product technical documentation.
4.10 Tolerance of steady state short-circuit current
Between the drive motors with the same specification and model, the deviation of the steady state short-circuit current measured at the specified speed from the typical value shall be no more than ± 5%.
4.11 Permanent magnet aging and demagnetization
After the reliability test, the ratio of the back electromotive force decline of the drive motor caused by the permanent magnet aging shall not exceed the value specified in the product technical documentation. Other methods may also be adopted through negotiation between the supplier and the purchaser.
5 Test methods
5.1 General
Except for the test methods specified below, the test methods for other test items shall comply with GB/T 18488.2-2015.
Unless otherwise specified, the accuracy requirements of measuring instruments shall comply with GB/T 18488.2-2015.
5.2 Initial position angle
Drive the drive motor to the speed specified in the product technical documentation to inspect the relative angular relationship between the waveform phase of the position sensor and that of the back electromotive force.
For end-of-manufacturing inspection in mass production, the initial position angle may be inspected by using other methods agreed by the supplier and the purchaser through negotiation.
5.3 Limit of maximum no-load back electromotive force
The test shall be carried out under actual cold conditions, and the ambient temperature at the time of the test must be recorded.
Drive the drive motor to the maximum working speed and measure the back electromotive force.
The value of the back electromotive force mentioned above shall be corrected to 20℃ as per the method agreed by the supplier and the purchaser through negotiation.
5.4 Tolerance of no-load back electromotive force
The test shall be carried out under actual cold conditions, and the ambient temperature at the time of the test must be recorded.
Drive the drive motor to the rated speed and measure the back electromotive force.
The temperature correction method is the same as those specified in 5.3.
For end-of-manufacturing inspection in mass production, it may be carried out using other methods which reflect the tolerance of the no-load back electromotive force and are agreed by the supplier and the purchaser through negotiation.
Contents of QC/T 1069-2017
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Inspection rules
7 Marking and identification
Annex A (Normative) Inspection classification
