ET3206A. ET3206A Datasheet_V2.3

Transcription

1 ET3206A Main Microprocessor NXP SPC56xx 64MHz 1M Flash 80K SRAM Float Point Capability Monitor Microprocessor NXP S9S08 Automotive rated 8-bit Inputs 12 Analog Inputs 10 Digital Inputs 6 Frequency Inputs 3 Wake-up Inputs Outputs 4 High-Side Drivers (all 4 channels could be configured as PWM outputs) 8 Low-Side Drivers 9-32 V Operating Voltage Communication 3 CAN 2.0B channels 5V Sensor Supply 2 channels Environmental -40 C to +85 C Operating ISO16750 Compliant Simulink Model Based Design 1

2 Contact us: Web: Address: Beck Road, STE D5, Wixom, Michigan, USA Tel:

3 CONTENTS CHAPTER 1 GENERAL INFORMATION TCU Introduction TCU Features... 5 CHAPTER 2 HARDWARE Specification Dimension... 7 CHAPTER 3 CONNECTOR Connector Parts Pinouts System Example CHAPTER 4 FUNCTION DESCRIPTION AND APPLICATION NOTE Power TCU Power Sensor Power Supply VPWR Control Logic Inputs Digital Inputs Analog Inputs Frequency Inputs Outputs Low Side Outputs High Side Outputs H Bridge Outputs Communication Module TCU CAN Module Introduction DBC File Import CCP Protocol Implementation Safety Monitoring Module Controller Chip-level Diagnosis

4 4.6 Software architecture CHAPTER 5 SOFTWARE COMPATIBILITY Prototype/Production Code Generation EcoCoder Powerful Calibration Software EcoCAL TCU Programming Tool EcoFlash APPENDIX: TEST STANDARD Environmental Test Standards EMC Test Standards Electrical Performance Tests Standards

5 Chapter 1 General Information 1.1 TCU Introduction Transmission Control Unit, is designed for EV/HEV transmission control. As one of the main control units of the CAN bus-based vehicle control network, TCU controls vehicle transmission shifting based on the user-defined transmission control strategy, vehicle driving modes, driver behaviors, etc. TCU determines the optimal gear shift timing based on various signal inputs such as the vehicle speed, engine/e-machine RPM, torque command, etc., and coordinates the powertrain torque output to ensure smooth gear shifting and improve the vehicle economy and drivability. 1.2 TCU Features ISO26262 Functional Safety Basic Software (BSW) Model Based Design and Automatic Code Generation CAN Bus-Based Programming Ecotrons TCU is designed according to ISO26262 functional safety standard (ASIL-C/D) and comes with a master-slave structure (a main chip and a monitoring chip) for safety monitoring. Ecotrons TCU comes with the basic/low-level software, supporting all typical input/output drivers for vehicle controls. The BSW is encapsulated as a Simulink library, EcoCoder. User could take the advantage of this model-based design tool to quickly build control strategy with BSW and Simulink generic blocks. One-click code generation is supported to build executable file and A2L description file. EcoFlash is a CAN bus-based programming software. With this software, users could program the executable into TCU conveniently. CAN Calibration Protocol (CCP) Ecotrons TCU supports Ecotrons calibration software EcoCAL, also compatible with INCA, CANape, or other CCP-based calibration tools. 5

6 Chapter 2 Hardware 2.1 Specification Supply voltage Working temperature Humidity Storage temperature Protection level Mechanical shock Expected life Electric performance EMC Dimensions Weight Housing DC 12/24 V (9~32V) -40~85 C 0~95%, no condensation -40~85 C IP67 50g 10 years ISO16750, ISO7637 compliance CISPR25 compliance mm 600g Die-casting aluminum 6

7 2.2 Dimension 7

8 Chapter 3 Connector 3.1 Connector Parts Ecotrons TCUs use the automotive rated connector, made by Tyco Electronics, to meet the automotive safety requirements. The following table lists parts of the connector. Customers can buy their own connector parts to make the harness, or they can ask Ecotrons to buy for them. No. Name Part Number Supplier 1 80-pin PCB connector TE 2 28-pin connector (white sealing) TE 3 28 pos cap TE 4 52-pin connector (white sealing) TE 5 52 pos cap TE 6 MT Ⅱ terminal TE 7 Seal plug TE 8 JPT terminal TE 9 Seal plug TE 8

9 3.2 Pinout Name Pin # Description Specification BATT VBATT PGND V2 45 5V3 34 GND 8 19 KEYON 17 KEYON 2 5 DC 12/24 V power H-bridge Power, 9-32V TCU ground 5V sensor supply Sensor ground Key switch input CANA_SHIELD 29 CAN A Shielding CANB_SHIELD 41 CAN B Shielding CAN A_H 43 CAN A_H CAN A_L 31 CAN A_L CAN B_H 42 CAN B_H CAN B_L 30 CAN B_L CAN C_H 18 CAN C_H CAN C_L 6 CAN C_L AI01 37 AI02 11 AI03 49 AI04 23 AI05 39 Analog inputs Voltage range: 9-32V *See page 13 for application note Maximum current: 50mA *See page 14 for application note Active-high, digital input 8.5V *See page 15 for application note Built-in 120 Ω terminal resistor Built-in 120 Ω terminal resistor Built-in 120 Ω terminal resistor A/D resolution: 12bit Input voltage range: 0-5V Voltage dividing ratio: 1 *See page 17 for application note 9

10 AI06 38 AI07 12 AI08 13 AI09 50 AI10 24 AI11 53 AI12 60 DI01 47 DI02 20 DI03 35 DI04 36 DI05 21 DI06 46 DI07 9 DI08 22 DI09 10 DI10 48 SPEED1 26 SPEED2 52 SPEED3 14 SPEED4 25 SPEED5 40 SPEED6 51 HSO01 7 HSO02 44 HSO03 32 HSO04 33 LSO01 61 LSO02 54 LSO03 74 Analog inputs Analog inputs Digital inputs Digital inputs Frequency inputs High-side drivers Low-side drivers A/D resolution: 12bit Input voltage range: 0-5V Pull-up voltage: 5V Pull-up resistor: 10K Voltage dividing ratio: 1 PT type sensor input Active-high: 8.5V Input voltage range: 0-24V *See page 16 for application note Active-low: 4V Input voltage range: 0-24V Input frequency range: 1Hz 1kHz *See page 20 for application note Nominal current: 1A; All 4 HSOs can be configured as PWM output *See page 22 for application note Nominal current: 250mA 10

11 LSO04 67 LSO05 55 LSO06 56 LSO07 62 LSO08 76 *See page 21 for application note Hbridge 1A Hbridge 1B Hbridge 2A Hbridge 2B Hbridge 3A Hbridge 3B 78 1 st output of the H- 64 bridge nd output of the H- 57 bridge st output of the H- 73 bridge nd output of the H- 80 bridge st output of the H- 65 bridge nd output of the H- 58 bridge 3 Nominal current: 15A H-bridge 1 is internally connected to AI20 H-bridge 2 is internally connected to AI21 AI20/21 A/D resolution: 12bit Input voltage range: 9-32V *See page 23 for application note H-bridge 3 is internally connected to AI22 Nominal current: 15A A/D resolution: 10bit Input voltage range: 9-32V 11

12 System Example VPWR PGND Power Supply GND Active High Active Low V2 AI03 GND KEYON KEYON2 DI01 DI Sensor BATT VBATT VBATT BATT VBATT CANA_H CANA_L CANB_H CANB_L CANC_H CANC_L CANA_SHILD1 CANA_SHILD PGND LSO01 HSO01 PGND PGND PGND PGND LOAD LOAD

13 Chapter 4 Function Description and Application Note 4.1 Power TCU Power Always connect all available power supply pins to allow maximum current capability, because each power pin only allows limited current through. To avoid current overload on certain pins, and to avoid the potential damage, all power pins should be connected even they seem to be redundant. The current rating of TCU for H bridge power supply is 15A and VCU current rating is 8A. Analog input channel AI28 is internally connected to BATT for TCU power supply voltage measurement. Its input voltage range is 0-32V. Read ADC Volt block in EcoCoder could help read voltage of BATT, please refer to 0-32V Analog Voltage Input part of section for block setting details. Example Diagram + - Fuse Fuse Fuse Fuse Fuse BATT BATT VBATT VBATT VBATT GND GND TCU PGND 1 PGND PGND PGND PGND 75 13

14 4.1.2 Sensor Power Supply ET3206A provides 2 channels of 5V sensor power supply. 5V sensor ground is common grounded internally with TCU power ground. Sensor ground should connect to TCU signal ground instead of vehicle chassis ground. Example Diagram 5V2 45 Sensor AI02 11 TCU GND 8 14

15 4.1.3 VPWR Control Logic CAN Wake BATT KEYON KEYON 2 OR PowerDelay OR Power Supply With BATT connected, TCU Power (VPWR) could be activated by KEYON, KEYON 2, CAN Wake and Power Delay signal. Power Delay signal is controlled by the low-level software and it is used for TCU power-down delay. This delay function provides the power to the TCU for an extended time window after the user turning off the key-switch. During this extended time, or after-run, TCU could do some house-keeping work, such as storing the critical data into non-volatile memory (NVM). KEYON, KEYON 2 are wake-up inputs with actual pins on the TCU connector. They are activehigh and could be used as wake-up signal inputs for some applications that need to wake up TCU. The user application software shall, before initiating the TCU shutdown process, make sure all the wake-up signals mentioned above are not keeping the TCU awake: KEYON, KEYON 2 need to be low. Make sure there is no traffic on CAN bus. Notice: It is recommended to connect KEYON (Pin 17) to the actual vehicle key switch and use the Power Management Example block in EcoCoder to manage the TCU and vehicle shutdown process. Proved power management strategies are integrated in that block. 15

16 4.2 Inputs Digital Inputs The digital inputs on ET3206A can be used to read the state of a digital signal which shares ground reference with TCU. There are two kinds of inputs: Active-high: EcoCoder block will read a default value of 0; When the channel reads a voltage 8.5 V, the EcoCoder block will read the input as 1. Active-low: EcoCoder block will read a default value of 1; When the channel reads a voltage 4 V, the EcoCoder block will read the input as 0. Example Diagram Active High DI01 47 TCU Active Low DI

17 4.2.2 Analog Inputs ET3206A offers 12 analog inputs with 12bits resolution. The voltage range is 0-5V. There are three types of analog inputs, Resistance Input, Voltage Input and PT Type Input (PT1000 by default). Type Resolution Voltage Range Channel # Description Resistance AI 06, 07, 08, 09, 10 Voltage 12bits 0-5 V AI 01, 02, 03, 04, 05 PT AI 11, 12 17

18 Analog Input Wiring Examples Resistance Input Diagram 5V TCU 10K 10K AI K ADC Voltage Input Diagram TCU AI01 0-5V dc K ADC 18

19 Analog input channel AI28 in EcoCoder is dedicated for TCU power supply voltage measurement and is internally connected with TCU power supply pins. Users need to specify Custom Voltage Ratio in the following EcoCoder block to help application software read correct voltage input- the ratio is ( ) /

20 4.2.3 Frequency Inputs ET3206A provides 6 PWM frequency input channels with pull-down resistors by default. The maximum resolution for period measurement is 0.01Hz. The measurable frequency range is 1Hz-1kHz. Example Diagram Frequency Input 26 Filter 100k 68k PWM Input 20

21 4.3 Outputs Low Side Outputs ET3206A provides 8 low side outputs with overcurrent and overvoltage protection. These drivers could be used as Boolean outputs for driving peripheral devices such as relays, pumps, etc. 8 channels x 250mA continuous current. Low Side Outputs Wiring Example V TCU LOAD LSO01 61 LSO Control Low Side Outputs Driver Diagnostic Channel Number LSO 01, 02, 03, 04, 05, 06, 07, 08 Output shorted to V + Output shorted to GND Open circuit Over load Over temperature Diagnostic Method 21

22 4.3.2 High Side Outputs This TCU provides 4 high side outputs with overcurrent and overvoltage protection. These drivers could be used as Boolean outputs for driving peripheral devices such as relays, pumps, etc. 4 channels (HSO 01, 02, 03, 04) x 1A continuous current All high side outputs, HSO01, 02, 03, 04, can be configured as PWM outputs. They could output 15Hz 1KHz square wave PWM signals with resolution of 1Hz. High Side Outputs Wiring Examples VPWR TCU HSO Control HSO01 7 LOAD GND High Side Outputs Driver Diagnostic Channel Number All HSOs Output shorted to V + Output shorted to GND Open circuit Over load Over temperature Diagnostic Method 22

23 4.3.3 H Bridge Outputs H bridge drivers can provide three working modes: single-quadrant mode, doublequadrant mode and four-quadrant mode. H bridge has over temperature, over voltage, under voltage shutdown and dead zone protection. The H-bridge feedback current is used as a feedback signal for current limit/overcurrent protection, or current closed-loop control. The H-bridge driver hardware is controlled by PWM signal defined by lower level software. H-bridge 1 is internally connected to AI20, H-bridge 2 is internally connected to AI21, H-bridge 3 is internally connected to AI22. There are there types of input signal voltage range, 0-5V with 10bits resolution, and users could realize the diagnostic functions for all 3 H-bridge channels based on the voltage value. Example Diagram H-Bridge1A 78 LOAD TCU H-Bridge1B 71 23

24 Driver 120Ω CAN2H CAN2L 4.4 Communication Module TCU CAN Module Introduction This TCU provides 3 CAN channels CAN A, CAN B, CAN C, all CAN channels are CAN 2.0B high speed buses. All CAN channels are equipped with built-in 120Ω terminal resistors. CANA supports TCU wake-up function, the TCU could be woken up by any messages on CANA. This function could be used for situations where TCU need to be turned on for certain applications. TCU CAN PC Driver Driver CAN Bus 120Ω CAN0H CAN0L 120Ω CAN1H CAN1L CAN Bus CANH CANL CANH CANL CANH CANL CANH CANL 120Ω 120Ω 120Ω CAN Node CAN Node CAN Node CAN Node 24

25 CAN Implementation Layers (1) Driver layer: the data link layer of communication model, including the IO driver and CAN drive of the microcontroller. (2) Abstraction layer: the network layer of communication model. It is responsible for choosing corresponding IOs, providing CAN channel initialization, CAN sender/receiver interface for the service layer. (3) Service layer: the interactive layer of communication model. The implementation of this layer is based on the interface function provided by the abstraction layer and achieved with the Simulink model and s-function. (4) Application layer: with DBC file and customer s Simulink model, specific CAN communication setup based on user-defined parameters could be implemented in this layer. 25

26 4.4.2 DBC File Import The implementation of CAN messages in the application software can utilize the DBC file which specifies formats and scaling of the CAN messages and signals already. In many cases, the DBC file is existing and full of CAN signals, and it saves a lot of work for users simply import the DBC file into the Simulink models, and populate the CAN messages. Ecotrons provides a convenient way to convert the *.DBC file to *.M file and then populate the Simulink models. The procedure is shown as below: 26

27 4.4.3 CCP Protocol Implementation CCP service, DAQ definition and storage page configuration are implemented in low level software; while the station address, DTO ID, CRO ID and other basic parameters can be configured in the s-function. Ecotrons VCU/TCU supports CCP-based online calibration, the VCU/TCU is compatible with EcoCAL, the Ecotrons own calibration software, and other CCP-based calibration software such as INCA. For more information about our calibration software EcoCAL, please refer to the EcoCAL User s Manual. 27

28 4.5 Safety Monitoring Module The VCU/TCU design is based on advanced safety monitoring concept. It implements a masterslave architecture to assure the system safety. The microcontroller (master chip) is a 32-bit controller, SPC56xx, while the slave chip is an 8-bit automotive level microchip, S9S08. Three-level safety monitoring architecture Level 1: Vehicle control functions, including all vehicle control strategies and fault diagnosis. Level 2: Monitoring level 1 by a redundancy design, level 2 is independent to the Level 1. If there is discrepancy between level 2 and the level 1, level 2 will force the critical safety related signals such as torque request to Neutral. Level 3: A slave chip is implemented in this level for monitoring the master controller. Master and slave chips will constantly cross-check each other, if the check fails, the torque command will be neutralized, as a result, hazardous situation could be avoided. 28

29 4.6 Software architecture There are two layers of software residing on top of microcontroller, application software (ASW) and basic software (BSW). BSW is preloaded into microcontroller by Ecotrons. ASW is created by customer in Simulink environment and loaded to VCU/TCU with EcoFlash. BSW consist of three sub layers: Service layer includes system service, memory service and communication service. This layer encapsulates all basic software functions into different service which would be directly called by command in application software. ECU* abstraction layer encapsulates drivers of microprocessor and peripherals. Then, software and ECU hardware are separated. Microprocessor and peripheral driver layer include drivers of microprocessor and peripherals. Typically, microprocessor includes driver of watchdog, timer, SPI, LIN, CAN, ADC, PWM and Flash. Peripheral includes drivers of HSO, LSO, power management chip and CAN transceiver. Notice: TCU stands for transmission control unit. TCU is a kind of ECU. 29

30 Chapter 5 Software Compatibility 5.1 Prototype/Production Code Generation EcoCoder EcoCoder is an enhanced auto code generation library added on top of Simulink s generic Embedded Coder. It is specifically designed for Ecotrons hardware and it bridges the Simulink models directly to the target hardware, providing users the capability to generate the production code by ONE CLICK. For more details, please refer to the EcoCoder User Manual. 30

31 5.2 Powerful Calibration Software EcoCAL EcoCAL is a professional calibration tool, developed by Ecotrons. It is specifically designed for Ecotrons VCUs/TCUs or Controllers. The software is based on the CCP protocol and uses the CAN bus for data communication with target hardware. It has various measurement tools integrated for different kinds of signals, providing a more straightforward interface. EcoCAL also integrates data logging function and provides an integrated data analysis tool. It parses the standard A2L files and manages the calibration data in the format of S19 files, Mot files or CAL files. For more details, please refer to EcoCAL User manual. 31

32 5.3 TCU Programming Tool EcoFlash EcoFlash is a simple PC based software to program the controller, developed by Ecotrons, using CAN communication for programming, with a typical bootloader pre-programmed in the microprocessor. For more details, please refer to Ecotrons EcoFlash User Manual. 32

33 Appendix: Test Standard These tables are extracted from third party test report. For complete report, please Environmental Test Standards Topic Electrical operation during cycling ambient temperature Ambient storage temperature High and low temperature test Thermal shock Humid heat cyclic test Damp heat, steady-state test Dust and particulate Splash test Leakage and function test Corrosion test Fluids and chemicals Mechanical shock / Pot hole test Vibration Drop Test standard ISO ISO ISO ISO ISO ISO IP67 ISO ISO ISO IP66 ISO ISO ISO EMC Test Standards Topic Over voltage test Reverse polarity protection test AC voltage superposition test Supply voltage slow down test Voltage transient drop test Reset performance test Starting voltage test Quiescent current measurement test Single - wire open circuit test Multi - line open circuit test Short-circuit protection Insulation resistance Test Standard NA Average quiescent current 1mA 33

34 Electrical Performance Tests Standards Topic Over voltage test Reverse polarity protection test AC voltage superposition test Supply voltage slow down test Voltage transient drop test Reset performance test Starting voltage test Quiescent current measurement test Single - wire open circuit test Multi - line open circuit test Short-circuit protection Insulation resistance Test Standard NA Average quiescent current 1mA 34