CAN Newsletter September 2008
| Device | J1939 - Display - ECU - Force sensor - Measuring 6 Power panel - GSM/GSP - HMI - Shock endurance 8 Linux interfaces - Power module - For diagnostics 10 Single-board computer - Bluetooth - WLAN - USB to CAN 16 Gateway - Data acquisition - Fire panel system 27 Vehicle control - Host controller 35 Hybride drive - Absolute encoder - Operator console 55 Stepper-motor - Multi-sensor - Dashboard - Sensor 66 Measurement systems for automobiles 72 For auto lifting platform - For stepper motors 74 Gateways - Stepper drives - Frequency inverters 78 Weighing with CANopen/Devicenet - GPRS module 87 |
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| Application | Common-mode chokes may cause unexpected transients 12 CANopen sensors for AmI applications 20 Hints and kinks for single-wire CAN 28 CAN-based monitoring in refrigerated transports 56 Access of CAN networks over standard IT interfaces 62 Joint vehicle design for emerging markets 68 Intelligence in DC servo drives shortens cycle times 70 Crushing with CANopen hydraulics 76 CAN networks in self-propelled machines 80 |
| Semiconductor | JGateway controller - Motorcycle engine control 15 For industrial applications - CAN repeater - Converter 18 Micro-controller dedicated for powertrain ECUs 60 |
| Tools | JPC/104 board - Absolute encoder - Interface module 32 Vehicle drive simulator 33 Device manager - Debug tool for micro-controllers 83 FPGA-based platform for numerous in-vehicles tests 84 CANopen configuration tool 86 |
| Business | J50 years Luetze - CANopen book - EU in favor of ESP 34 Body controller for low-cost cars 36 Service robots - CAN seminars - Photovoltaic 38 |
| Reader service | JCAN Newsletter subscription form 90 |
| Supplement | JHanover Fair - Ethercat robots - New board of directors 1 CiA 402 implementation guideline - Device development 3 CiA 402 compliant - Position sensor - Rugged EPC 4 XML description - Gateways - Robot - Seminar 6 Servo drive - Seminar - Multi-turn encoder 8 Powerlink uses CANopen object dictionary and profiles 9 Ethercat-to-CANopen gateways 11 Connecting CANopen and Ethernet Powerlink 12 CANopen-to-Ethercat gateways 14 |
Micro-controller dedicated for powertrain ECUs
To help reduce automotive emissions that contribute to the greenhouse effect and global warming, a family of 32-bit automotive micro-controllers (MCUs) with integrated emissions control has been introduced. The MPC563xM family includes three 32‑bit MCUs designed to help improve the efficiency and performance of small engines scaling from one to four cylinders. The product family was developed jointly by Freescale and STMicroelectronics. The MCUs feature emissions control technology that takes advantage of a digital signal processor (DSP) that enables engine designers to maximize fuel economy and performance while minimizing engine “knocking,” resulting in a 3 % to 5 % reduction in CO2 emissions. Based on single-input/multiple-data (SIMD) processing techniques, the DSP functionality also can be used for patented sensor diagnostics schemes that address on-board automotive diagnostics. Of course, the MCUs provide two FlexCAN modules, which are compatible with TouCAN implementations. In total, the CAN interfaces support 64 plus 32 message buffers.
“The impressive processing power of our MPC563xM MCUs enables engine designers to develop powertrain solutions that help reduce CO2 emissions, as well as to address current and future automotive emissions requirements,” said Paul Grimme, senior vice president and general manager of Freescale’s Microcontroller Solutions Group. “These advanced, cost-effective MCUs are the right products at a time when green automotive technology is critical to addressing the growing concern of global warming.”
The world’s estimated 820 million cars (source: J.D. Power and Associates) emit on average four tons of CO2 per vehicle each year, totaling about 3,3 billion tons annually. A 5 % reduction in all automotive CO2 emissions potentially could remove as much as 165 million tons of CO2 from the atmosphere each year. As a leading greenhouse gas, CO2 is believed to be a major contributor to the greenhouse effect behind global warming. CO2 represents more than 80 % of greenhouse gas emissions in the United States alone.
Solution for emerging markets
The MPC563xM family’s pricing helps make advanced emissions control technology more affordable. Cost-sensitive engine designs of up to four cylinders are prevalent in emerging automotive markets such as China and India, where government regulations are moving in a direction of requiring automakers to manufacture more efficient engines that emit fewer harmful emissions. For automotive developers currently using 16-bit MCU solutions for powertrain control, the MPC563xM family provides a cost-effective 32-bit solution that extends processing performance beyond 16-bit capabilities. The introduced MCUs feature up to 1,5 MiB of flash memory, 81 KiB of SRAM, and a MCU core that scales up to 80 MHz.
The MCUs come in quad flat packages (QFP). A QFP has visible pins, making the package easy and affordable to install, inspect and repair, without requiring costly infrared and X-ray inspection technology. In addition, the MCUs are software compatible with the well-established MPC55xx family.
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Crushing with CANopen hydraulics
In the Enniscorthy Quarry in Northern Ireland, the Finlay J-1175 crushes rocks and stones with much noise. The single-toggle jaw crusher is the latest development to complement Terex Finlay’s range of mobile crushing, screening and washing plants. The crusher is fitted with a 1 070 mm x 760 mm Jaques crusher chamber and a heavy-duty undercarriage for exceptional on site mobility. A heavy duty vibrating grizzly feeder with automatic control to regulate the feed into the crusher, hydrostatic drive, reverse crushing action to assist in clearing blockages are all major features of this unit. The owner of the crusher, Yellowstone C & D Ltd., regards the J-1175 as ideal for contract crushing and demolition/recycling applications. Edward Warren, the Managing Director of Yellowstone, explains why they have opted for the new J-1175 finlay jaw crusher. “Having used jaw crushers from other suppliers, we were initially impressed with the increased production through the J-1175.” The J‑1175 jaw crusher is the first in the new crushing range to be launched by Terex Finlay. With the I-1312 impact crusher, the machine builder is forecasting significant progress in the overall service that they can offer to their customers both in the home market and abroad.
Control software and hardware
The control system is based on hydraulics from Eaton. Besides off-the-shelf hydraulic devices, the company offers the development of application-specific devices and control systems. Designed around open standards (e.g. CANopen and J1939) and based on the IEC-61131-3 programming standard, the Eaton control F(x) is a Windows-based tool that lets customers develop scalable electro-hydraulic systems. Standard function blocks can be used to combine any electro-hydraulic devices, while an additional set of predefined logic blocks specific to hydraulic devices enable even more rapid, reliable development. One of the implemented J1939 protocols uses a specific source addressing to communicate with Eaton’s hydraulic devices as well as the swash plates of the pump. Another J1939 network links the engine from CAT (Caterpillar) to the crusher.
The controller provides six graphical and textual programming languages for logic development. It even includes tools to help you debug and monitor the programs the user creates. Tools for Rapid Development Native code generators and intelligent algorithms let the user quickly compile large projects with thousands of global variables and hundreds of devices. This software environment is suitable for Eaton’s EFX controllers, brand-labeled from IFM electronic. The controller comes in IP67-rated housings. Available is a range of CANopen-connectable I/O modules. The EFX provides two CAN interfaces capable to support CANopen and J1939 protocols.
Recently, Eaton acquired Moeller, a German control system company, offering a broad range of CANopen products. “This acquisition, coupled with our acquisition of Phoenixtec Power Company solidifies Eaton’s position as a leading global supplier of electrical power distribution and control products and power quality equipment and systems,” said Alexander M. Cutler, Eaton chairman and chief executive officer. “Now that these acquisitions have closed, our electrical business will have annual revenues in excess of $7,5 billion. In addition, Eaton’s non-United States revenues, based on final destination of our products, will be between 55 % to 60 %. “Additionally,” Cutler continued, “The Moeller Group’s broad portfolio of power distribution and control products that meet International Electrotechnical Commission (IEC) standards, its European and Asian distribution networks, and its significant Eastern European production facilities significantly expand our capabilities in electrical markets outside the United States.”
Fluid power devices
Eaton Corporation is a diversified industrial manufacturer with 2007 sales of $13,0 billion. The company is a global leader in electrical systems and components for power quality, distribution and control; fluid power systems and services for industrial, mobile and aircraft equipment; intelligent truck drivetrain systems for safety and fuel economy; and automotive engine air management systems, powertrain solutions and specialty controls for performance, fuel economy and safety. Eaton has 79 000 employees and sells products to customers in more than 150 countries. Eaton’s hydraulics operations provide customer-driven solutions under brand names such as Aeroquip, Boston, Char-Lynn, Eaton, Hydro-Line, Vickers and Weatherhead.
In the jaw crusher several hydraulic device from Eaton brands are used. This includes valves and pumps, which have been developed in close cooperation with the machine builder. Most of the devices provide CAN connectivity. The ZTS16’s hydraulic valves feature a CANopen or J1939 interfaces for communicating machine control demands, adjusting programmable valve parameters, and monitoring real-time valve performance. The CAN-based interface allows system developers to apply a complete control system. The valve features two independent metering for system functionality, flow and pressure control. It optionally provides closed-loop control via embedded spool position and work port pressure sensors.
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