Electric vehicle power system engineer team responsibility and accomplishment

General rules of team function and accomplishment of electric vehicle power system engineer

Car as clear a system function, complex structure of traditional industry, in the development of the vehicle has the characteristics of a clear division of labor, 1-2 field engineer alone is difficult to complete vehicle development work, need through teamwork.

New energy vehicles as a national energy strategy to break the focus of the direction of the automobile industry has become one of the key development direction. Electric vehicles as the focus of development of new energy vehicles and concern.

Power as a vehicle power system has a hundred years of history. But the modern meaning of electric vehicles - the integration of the latest power battery technology, motor vehicle system, as well as intelligent vehicle control and intelligent power control system of electric vehicle commercial history less than 10 years.

According to the development status of electric vehicle, the electric vehicle power system scope is defined as: vehicle control system, motor and its control system, power battery and its control system, electric pile and charging system.

Electric vehicle power system engineers team is one of the core team of electric vehicles - is significantly different from the traditional car development area.

General responsibilities of electric vehicle power engineers

Responsible for: according to the vehicle to define the vehicle powertrain system configuration, and in accordance with the enterprise vehicle communication system architecture and technical specifications and other systems of the vehicle sharing and integration; power system hardware selection, design verification and design approval of general electric vehicle powertrain engineer team.

It should be stated that the organization structure of each company is different, and it will be different for the team of the electric vehicle power system engineer. For a specific company, engineers need to execute according to company "enterprise organizational structure and departmental responsibilities", "engineer responsibilities", "vehicle development management procedures", "project development management process", "project quality management program" normative documents such as defined.

In the case of understanding the general rules of the engineer's duties and accomplishments. Enter a specific team, we must first understand the enterprise standardization procedures, reduce the blindness and in accordance with the experience of acting.

Basic professional quality of electric vehicle power engineer

1 basic theory of design

Computer / communication based on the design theory and computer software / hardware design theory, theory of modern mechanical design, finite element, reliability design etc.); mechanical and thermal / table processing; typical manufacturing process specification and process; engineering drawing and reading ability; aided design software or auxiliary equipment use standard.

2 solid professional and technical theory

Modern automobile electronic technology, vehicle mounted computer / communication network specification; mechanical and electrical products foundation design, mechanical and electrical products safety code for design of; software design and the software design specification for safety; basic working principles of electric appliances, design specifications; car structure and theory, automotive design; working principles of typical system; typical mechanical products manufacturing process (casting, stamping, machine, assembly and electronic products manufacturing process (circuit board reflow, wave soldering, wire harness pressure riveting, ECU test) circuit and control method, typical product design specification (basic structure, material, heat / table processing); industry and professional standards.

In particular, need to be familiar with the power battery development and design specifications, motor development and control theory, vehicle energy management, control, balance theory.

3 analyze and deal with the problem.

Adhere to process and dogma, flexible and do not break principle; error resolutely stop and correct the immediate execution, uncertain stop argument again after the action; good splitting problem: problem is split into small problems, from easy to difficult, the decomposition is solved;

4 problem oriented, goal oriented, system overall design ideas

Pay attention to important points, small start; proper use of trade-offs to seize the key elements of principle.

Position: standardization and seriation design (the manufacturing process of the product); system coordination relation;

Small place: reasonable design compromise (structure, size, material selection, etc.);

5 good professional habits

Careful and patient; take the fact as the basis; not blindly; rash; put the theory into practice, to the actual correction theory; continuous learning new technology, new theory, capturing the information age.

Power engineer and basic duty of electric vehicle

There will be a general a electric vehicle powertrain engineer team: vehicle control system engineer, motor and its control system, power battery and its control system, electric pile and charging facilities system, maintenance manual planning engineers to prepare.

Specific organizational structure, the engineer is different. For example, the body of electronic system development engineers, chassis electronic system development engineers, power electronic system development engineers generally belong to the relevant functional departments, electronic appliances to complete a variety of interface definitions.

Vehicle control system engineer: according to the vehicle system configuration definition, vehicle performance and performance objectives, body system, chassis system, power system, electronic system configuration, make vehicle system level control architecture, system communication interface, information transmission, sharing, diagnostic criteria, standardizing the information security; participate in the formulation / review system performance, performance target, scheme; leading vehicle control system design verification and approval.

Motor and its control system: according to the vehicle system configuration definition, vehicle performance and performance objectives, vehicle electronic power system configuration, the motor matching and the associated configuration scheme; system performance target setting and decomposition principle; according to the vehicle control strategy of motor control strategy and Realization of the control path; responsible for system integration design verification and design approval.

Power battery and control system: according to the vehicle system configuration definition, vehicle performance and performance objectives, body system, chassis system, power system, electronic system configuration, establishing vehicle power battery layout scheme; energy management strategy and the realization of the path; making dynamic power battery and the thermal damage management strategies and the realization of the path; develop battery safety control strategy and implementation path; participate in the formulation / review system performance, performance target, scheme; leading power battery and control system of design verification and approval.

Electric pile and charging facilities system: according to vehicle power battery management system definition and vehicle charging strategy, the development of charging and charging safety control strategy and implementation technology of path and choose reasonable charging scheme and interface specification. Design verification and design acceptance of the leading electric pile and charging facilities system.

Maintenance manual planning and Preparation Engineer: Organization / preparation guide 4S shop or professional repair and maintenance manual; organization / preparation of user operation, maintenance manual.