Injeçao eletronica reparo de ecuDescripción completa
More Dress Pattern Designing by Natalie BrayFull description
More Dress Pattern Designing by Natalie BrayDescripción completa
lets learn C
Descripción completa
This Ppt is how welding is designed and how many types of weldingFull description
An analysis of the work of comic artist Chris Ware through the lens of graphic design.Descripción completa
Antennas, Small Antennas
piping design
ABOUT CVTDescrição completa
finite lement test of girderFull description
Descripción completa
Full description
Constitución ECUDescripción completa
C3 1.4 HDI Delphi ECU PinoutDescripción completa
Descripción completa
Ecu
Descripción: Catalogo Ecu
ECU Designing By Dee eepe pen ndra dra Ma Mag gard arde
9/1/2012
DEEPENDRA MAGARDE
1
Elec El ectr tron onic ic Cont Contro roll Uni Unitt - EC ECU U
In the Automobile industry an electronic control unit (ECU) is a embedded electronic device , signals coming from sensors placed at various parts and in different components of the car and depending on this information controls various important units e.g. Engine
9/1/2012
DEEPENDRA MAGARDE
2
ECU Key Funtions Read signals coming from sensors Controls various units according to sensor
Keeps a check on the performance of components
9/1/2012
DEEPENDRA MAGARDE
3
An ECU is basically made up of hardware and software (firmware).
The hardware components is a microcontroller chip chip along with an EPROM or a Flash memory chip. The software (firmware) is a set of lowerlevel codes that runs in the microcontroller.
9/1/2012
DEEPENDRA MAGARDE
4
The ECU is characterized by:
Many analog and digital I/O Power device interface/control Different communication protocols (CAN, KWP-2000, etc.). signals High voltage tests Intelligent communication interface adapters (standard or custom) Automatic fixture recognition and software sequence enable Power device simulation
9/1/2012
DEEPENDRA MAGARDE
5
Different Types of ECU's ECM – Engine Control Module EBCM – Electronic Brake control
PCM – Powertrain control module VCM – Vehicle control module BCM – Body control module
9/1/2012
DEEPENDRA MAGARDE
6
ECM – Engine Control Module ECM is an ECU in an internal combustion engine that controls various engine functions e. Injection Ignition timing Idle speed control system.
9/1/2012
DEEPENDRA MAGARDE
7
EBCM – Electronic Brake control module.
The EBCM regulates the braking systems on the basis of five inputs that it receives.
9/1/2012
DEEPENDRA MAGARDE
8
PCM – Powertrain control module
PCM is an ECU that monitors and controls speed, charging and Automatic Transmission The inputs that are fed to the PCM are from: · throttle position sensor, · , · vehicle speed sensor · engine speed sensor (CKP) · brake switch · cruise control switches · ignition · overdrive on/off switch · governor pressure sensor.
9/1/2012
DEEPENDRA MAGARDE
9
VCM – Vehicle control module
VCM is an ECU that takes care of systems like: · Electronic Powersteering (EPS) systems · Adaptive Cruise control (ACC) systems · Airbag control system (ACS) systems. · Electronic Stability Control (ESC) systems.
9/1/2012
DEEPENDRA MAGARDE
10
BCM – Body control module
BCM is an ECU that takes care of seating control unit, wiper control, power windows and ower hoods in convertible cars e. . Benz SL Roadster).
9/1/2012
DEEPENDRA MAGARDE
11
ECU functional blocks 1. Power Supply – digital and analog 2. MPU – microprocessor and memory 3. Communications Link – (e.g. CAN bus) 4. Discrete Inputs – On/Off Switch type inputs . requency npu s – enco er ype s gna s 6. Analog Inputs – feedback signals from sensors 7. Switch Outputs – On/Off Switch type outputs 8. PWM Outputs – variable frequency 9. Frequency Outputs – constant duty cycle
9/1/2012
DEEPENDRA MAGARDE
12
Sensors and Actuators Connected to an ECM
Manifold Air temperature Sensor (MAT) Coolant Temperature Sensor (CTS) Camshaft/Crankshaft Position Sensor (CPS) Knock Sensor (KS) Heated Oxygen Sensor (HO2S) Throttle Position Sensor (TPS) Vehicle Speed Sensor (VSS) Manifold Absolute Pressure (MAP)
9/1/2012
DEEPENDRA MAGARDE
13
Different types of Protocols used
Diagnostics ODBII protocol CAN ISO 11898 Body and Powertrain LIN Multimedia and Drive by wire MOST IDB 1394 Drive by wire FlexRay
9/1/2012
DEEPENDRA MAGARDE
14
Design and Testing
9/1/2012
DEEPENDRA MAGARDE
15
Three Academic options for building a software model.
LabVIEW System Identification Toolkit and Control Design Toolkit Simulation Module MATRIXx Xmath SystemBuild AUTOCODE Document It
9/1/2012
DEEPENDRA MAGARDE
16
Three Academic options for building a software model cont.
In this step the core ECU model is modified to interface with the I/O available in the actual ECU and then is converted into a C code using a C –code generator. In some cases they are also converted into an ada code. And then this code is downloaded as the control algorithm to the 32-bit microcontroller inside the ECU.
9/1/2012
DEEPENDRA MAGARDE
19
Hardware-in-the-loop Simulation (HIL)
9/1/2012
DEEPENDRA MAGARDE
20
AUTOSAR (AUTomotive Open System ARchitecture) is a worldwide development artnershi of car manufacturers suppliers and other companies from the electronics, semiconductor and software industry. The AUTOSAR scope includes all vehicle domains.
9/1/2012
DEEPENDRA MAGARDE
21
AUTOSAR Improve performance, safety and environmental friendliness " standards, compete on implementation“ Improve cost-efficiency without making any compromise with respect to quality Facilitates the exchange and update of software and hardware
9/1/2012
DEEPENDRA MAGARDE
22
Technical Overview Technical goals Modularity
Transferability Re-usability
9/1/2012
DEEPENDRA MAGARDE
23
Technical Overview
AUTOSAR enables configuration process optimization (e.g. partitioning and resource usa e and where necessar to allow local optimization if required to meet the runtime requirements of specific devices and hardware constraints.
9/1/2012
DEEPENDRA MAGARDE
24
AUTOSAR ECU Software Architecture
9/1/2012
DEEPENDRA MAGARDE
25
Standardized interfaces
9/1/2012
DEEPENDRA MAGARDE
26
AUTOSAR Software Components Virtual Functional Bus (VFB) System Constraint and ECU
Mapping on ECUs Runtime Environment (RTE)
9/1/2012
DEEPENDRA MAGARDE
27
Software Component A fundamental design concept of AUTOSAR is the separation between: Application Infrastructure
9/1/2012
DEEPENDRA MAGARDE
28
Sensor/Actuator Software Components
9/1/2012
DEEPENDRA MAGARDE
29
AUTOSAR Runtime Environment
The RTE provides a communication abstraction to AUTOSAR Software Com onents attached to it b rovidin the same interface and services whether inter-ECU communication channels are used (such as CAN, LIN, FlexRay, MOST, etc.) or communication stays intra-ECU.
9/1/2012
DEEPENDRA MAGARDE
30
AUTOSAR Basic Software
Services System services such as diagnostic protocols; NVRAM, flash and memory management Communication . . , , FlexRay...), I/O management, Network management Operating System As AUTOSAR aims at an architecture that is common for all vehicle domains it will specify the requirements for an AUTOSAR Operating System
9/1/2012
DEEPENDRA MAGARDE
31
Microcontroller Abstraction layer (MCAL)
Digital I/O (DIO) Analog/Digital Converter (ADC) Pulse Width (De)Modulator (PWM, PWD) Flash (FLS) Capture Compare Unit (CCU) Watchdog Timer (WDT) Serial Peripheral Interface (SPI) I2C Bus (IIC)
9/1/2012
DEEPENDRA MAGARDE
32
ECU specific components
ECU Abstraction The ECU Abstraction provides a software interface to the electrical values of any specific n or er o ecoup e g er- eve so ware from all underlying hardware dependencies. Complex Device Driver (CDD) The CDD allows a direct access to the hardware in particular for resource critical applications
9/1/2012
DEEPENDRA MAGARDE
33
The AUTOSAR Methodology
System Configuration Description:
Configuration Extractor:
includes all system information and the information that must be agreed between different ECUsSystem Description needed for a specific ECUECU extract: is the information from the System Configuration Description needed for a specific ECUECU
Configuration Description:
all information that is local to a specific ECU the runnable software can be built from this information and the code of the software component
Artop User Group The Artop User Group is a group of licensed users of the AUTOSAR standard with a s ecial interest in AUTOSAR compliant tools The AUTOSAR Tool Platform (Artop) is an implementation of common base functionality for AUTOSAR development tools.
9/1/2012
DEEPENDRA MAGARDE
37
ARText - An AUTOSAR Textual Language Framework ARText is a framework for building textual modeling languages for AUTOSAR ex s ase on ex . ARText extends Xtext with features specific to the AUTOSAR domain and provides a full integration of your editor within Artop.
