model-based design – from rapid prototyping to production · - test case generation -...

1© 2014 The MathWorks, Inc.

Model-Based Design – From Rapid

Prototyping to Production基于模型的设计– 从快速原型到产品

Paul Smith

Director – Consulting Services

MathWorks

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Prototyping to Production

原型到产品

Production Code Generation

产品级代码生成

Requirements Based Verification and Validation

基于需求的测试验证

Organization and Process Formalization组织架构于流程正规化

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Adoption Path to Production 产品化路径

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Model-Based Design 基于模型的设计

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Specification

Design

Implementation

Unit Test

Integration &

Functional Test

System TestRequirement

Capturing

Model-Based Design 基于模型的设计

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Model-Based Design Maturity Framework™基于模型的设计成熟度架构

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Model-Based Design Maturity FrameworkTM

基于模型设计的成熟度架构

Key Features• Perform comprehensive measurement of

capabilities• Independently measure each capability• Apply to any level of expertise or domain

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Modeling pillar details模型核心具体细节

Modeling Language

Algorithm Modeling

Environment/Plant Modeling

Modeling Standards

Process GroupsPillar

Requirements

Architecture

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Modeling pillar details模型核心具体细节

Modeling Language

Algorithm Modeling

Environment/Plant Modeling

Modeling Standards

Process GroupsPillar

Requirements

Architecture

Size

Hierarchy

Interfaces

Partitioning

Data Management

Scheduling

Testability

Data Modeling

Process Attributes

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Structure of the Model-Based Design Maturity FrameworkTM

基于模型设计成熟度架构

Pillars

Process Groups

Process Attributes

Maturity determined by rating:

6 Pillars,

32 Process Groups,

200+ Process Attributes

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Auto Industry Maturity: Leaders (Top 20%)汽车行业成熟度：某领先汽车企业（前20%）

0

20

40

60

80

100

Modeling

Simulation and Analysis

Implementation

Verification andValidation

Process, Toolsand

Infrastructure

Enterprise Management

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Proof of Concept

Deploy Component

Deploy FullApplication

Phase 13-6 mo

Phase 25-9 mo

Phase 31-3 years

Phase 43-5 years

Phased approach to building in-house competency建立自主研发能力途径

Matu

rity

Proof ofconcept

Deploy component

Deploy application

Deploy enterprise-wide

Time

Prototyping Production

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Phase 1: Prototyping - Proof of concept第1 阶段：原型-概念论证

Activities:

Form a team

Develop models

Use simulation to refine requirements

Execute generated code on prototype controller

0

20

40

60

80

100Modeling

Simulation and Analysis

Implementation

Verification andValidation

Process, Toolsand Infrastructure

Enterprise Management

Code

generation

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The Move to Production向产品方向转变

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Phase 2: Deploy a Component第2 阶段：零部件实施

New Activities

Simulation and analysis to refine and optimize design

Integration with production code build, configuration management, data dictionary, etc.

Introduce Model-Based Verification & Validation

Process initial definition, automation, and metrics

0

20

40

60

80

100Modeling

Simulation and Analysis

Implementation

Verification andValidation

Process, Toolsand Infrastructure

Enterprise Management

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Phase 3: Deploy an Application第3 阶段：整体应用上实施

New Activities

Full Model-Based V&V - coverage, SIL, PIL

- standards checking

- test case generation

- requirements linking

- change management

- plant modeling

- system-level simulation

Automated code build

Formal Process establishment

Organizational design

0

20

40

60

80

100

Modeling

Simulation and Analysis

Implementation

Verification andValidation

Process, Toolsand Infrastructure

Enterprise Management

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Verification & Validation Design

Implementation

Embedded

Software

DSP

C, C++

MCU

R E Q U I R E M E N T S

Testing

(HIL)

Test

Environment

Controller

Full Model-Based V&V完整的基于模型的测试与验证

Design

Verification

Code

Verification

Integration

Testing

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Model-Based Design Formal Process Establishment基于模型的设计正规流程的建立

Include details about: Organization

Projects targeted for adoption

Process

Tools

Infrastructure

Training

Automation

Metrics

Constraints

Standards

Regulations, etc.

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Challenges in Deploying MBD实施MBD面临的挑战

Resistance to change– Demonstrate and share success, get people involved, focus on

ROI early

Process and role changes– Clearly define expectations, evolve standards

Managing MBD as a “Hobby”– Full time leadership

It takes time– 1-3 years for Production, incremental advancement

Trying to figure it out on your own– Leverage MathWorks expertise

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ChallengeBuild a production engine control and embedded

software team, establish in-house development capability,

and complete the first production program in 36 months

SolutionUse Model-Based Design to design, implement, and test

control strategies and ECU software for a common-rail

diesel engine while working with MathWorks consultants

to develop the team’s software development skills and

expertise

Results Development time cut by 40%

Integration testing time halved

60% of design reused

Weichai Power Develops ECU Software for High-

Pressure Common-Rail Diesel Engine In-House

A high-pressure common-rail diesel

engine from Weichai Power.

Link to user story

“Compared with our past

experience with hand-coding,

Model-Based Design enabled us

to reduce labor costs by 30%,

cut testing costs by 20%, and

increase productivity by more

than 30%. We completed ECU

development ahead of schedule

while establishing our in-house

software development team.”

Daming Li

Weichai Power

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Automotive Industry Current Trends汽车工业当前趋势

• Plant modeling to support controls development

• ISO 26262 certification with Model-Based Design

• Further automation of V&V tasks

• AUTOSAR

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Proof of Concept

Deploy Component

Deploy FullApplication

Phase 4: Deploy enterprise-wide – MAC 2015第4 阶段：公司范围内实施-- MAC2015

Matu

rity

Plan

ExecuteAssess

Proof ofconcept

Deploy component

Deploy application

Deploy enterprise-wide

ContinuousImprovement

• Assess other site requirements• Refine objectives & capabilities• Combine and optimize processes

Time

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Thank You