Work applies to the diagnosis and repair of the traction motor speed control device in BEVs in the automotive industry.

AURETH3001 Depower battery electric vehicles

ELEMENT

PERFORMANCE CRITERIA

1. Prepare for repair operations

1.1. Procedures and information relevant to the task are sourced and work requirements confirmed

1.2. Workplace health and safety (WHS) requirements and appropriate precautions are identified and applied

1.3. Method most appropriate for the specific circumstances is selected and prepared for

1.4. Tools and testing equipment necessary to conduct the work are assembled

1.5. Technical and/or calibration requirements for testing and repair of the traction motor system are established

2. Diagnose motor control device

2.1. Tests and checks on motor controller cooling system are carried out using manufacturer specifications and test procedures

2.2. Motor controller is disconnected using correct procedure

2.3. Exposed live HV and LV connections and wiring are labelled with appropriate warning tags or signs

2.4. Controller settings and diagnostic information are retrieved using appropriate equipment

2.5. Tests and checks on motor controller are carried out to ensure correct operation

2.6. Test results are recorded

3. Repair or replace motor controller

3.1. Motor controller test results are compared with manufacturer specifications to decide on appropriate corrective action

3.2. Motor controller is repaired or replaced as required

3.3. Repaired or replacement motor controller is re-tested for correct operation

3.4. Motor controller is reconnected using correct procedure

3.5. Replacement or repairs carried out are recorded

4. Complete repair operations

4.1. Work area is tidied, and tools and equipment replaced according to workplace requirements

4.2. Job card is completed according to workplace requirements

4.3. Client report is prepared on the outcomes of the service and repair of the motor controller according to workplace requirements

4.4. Vehicle is prepared for return to the client

Required skills

technical skills to:

use workplace technology relating to testing and repairing a BEV traction motor speed control device

use specialist tools and equipment

use computerised measuring and diagnostic equipment

report and record actions

communication skills to:

confirm work requirements and specifications

communicate effectively regarding work requirements with supervisor, other workers and customers

report work outcomes and problems

literacy skills to interpret technical information and specifications

numeracy skills to complete tests and measurements to determine correct operation

problem-solving skills to:

interpret test results

identify repair options

self-management skills to:

manage risks and hazards associated with HV BEV electrical systems and components

optimise workflow and productivity

Required knowledge

components of HV BEVs and their functions

WHS requirements relating to:

safe work practices

electrical safety

principles of electricity, including AC and DC

principles of operation of motor speed control devices

repair procedures for motor speed control devices

applicable commonwealth, state or territory legislation, regulations, standards, codes of practice and environmental regulations relating to testing and repairing HV BEV motor speed control devices

vehicle-specific electrical requirements

workplace policies and procedures, including quality, recording and reporting procedures relating to testing and repairing HV BEV motor speed control devices

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

Critical aspects for assessment and evidence required to demonstrate competency in this unit

The evidence required to demonstrate competency in this unit must be relevant to workplace operations and satisfy all of the requirements of the performance criteria and required skills and knowledge.

A person who demonstrates competency in this unit must be able to:

comply with WHS requirements and safe work practices

ensure electrical and mechanical integrity of components and system is maintained when performing tests

check the motor control device performance against manufacturer specifications

diagnose and repair or replace motor control device as required to correct deficiencies

complete relevant documentation for the testing and repair of the motor control device.

Context of, and specific resources for assessment

Competency is to be assessed in the workplace or a simulated workplace environment that accurately reflects performance in a real workplace setting.

Assessment is to occur:

using standard workplace practices and procedures

following safety requirements

applying environmental constraints.

Assessment is to comply with relevant:

regulatory requirements

Australian standards

industry codes of practice.

Competency is to be assessed using a BEV that uses HV and LV AC/DC electrical systems. Where simulation is used, an operational BEV must be included in the simulation.

The following resources must be made available for the assessment of this unit:

appropriate PPE

a BEV

manufacturer specifications for the BEV

testing equipment

full range of essential tools and equipment

workplace documentation.

Method of assessment

Assessment must satisfy the endorsed Assessment Guidelines of this Training Package.

Assessment methods must confirm consistency and accuracy of performance (over time and in a range of workplace relevant contexts) together with the application of required skills and knowledge.

Assessment methods must be by direct observation of tasks and include questioning on required skills and knowledge to ensure correct interpretation and application.

Competence in this unit may be assessed in conjunction with other units which together form part of a holistic work role.

Where applicable, reasonable adjustment must be made to work environments and training situations to accommodate the needs of diverse clients.

Assessment processes and techniques must be culturally sensitive and appropriate to the language, literacy and numeracy capacity of the candidate and the work being performed.

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Procedures and information may include:

Australian standards

diagrams and sketches

engineer or manufacturer design specifications and instructions

industry codes of practice

parts catalogues

verbal, written and graphical instructions issued by authorised internal and external persons

workplace specifications and requirements.

WHS requirements may include:

elimination of hazardous materials and substances

first aid equipment

following emergency procedures

hazard and risk control

material safety data sheets (MSDS)

personal protective equipment (PPE) and clothing

safety equipment

techniques for manual handling, including shifting, lifting and carrying.

Appropriate precautions may include:

analysing task to define risk

applying electrical safety precautions, such as:

“one hand rule”

live system warning tags or signs

isolating the HV battery electrical supply

depowering the vehicle

using PPE, such as:

electrical safety gloves 1000V

HV insulating mats (Australian standards rated).

Tests and checks may include:

computer interface or communication device to retrieve controller settings and diagnostic information

controller input/output signals and voltages

motor controller cooling system.

Appropriate corrective action may include:

repairing the motor controller

replacing the motor controller.

Workplace requirements may include:

industry codes of practice

manufacturer specifications

quality policies and procedures

safe work procedures

sustainability, environment, equal opportunity and anti-discrimination policies and procedures

workplace recording and reporting procedures.

Electrical

Sector

Technical – Hybrid and Battery Electric Vehicle

This unit contains employability skills.