The Chinese car output has already exceeded U.S.A. to leap to the first in the world, the following 5-10 years will also keep the situation of constant growth. The Chinese car electronec industries association expects, the output speedup of the car of 2010 is about, expected to reach 15 million 10%. China has already emerged in many famous enterprises at present, including automaker, modular system supplier and components and parts supplier, electronic device trader,etc., the First Automobile Factory of China, the Second Automobile Factory of China, the intersection of hold, Chang An,etc. and native manufacturer than Yardie, Cherry, lucky, boat and considerable progress that make drive China innovate, in develop independently
Car electron Fast development of the industry.
However, in the face of the complicated car design requirement day by day, especially at the time of high side and commercial new energy car while introducing, autonomous innovation and way developed are not the level road. On a car electron technology forum which the expert of Tyke science and technology had held not long ago in order to have ” More than 100 ECUs, software code have already reached 7 million lines ” Toyota Lexus460 car for example,last electronic unit, proportion occupied is higher on car especially cars advanced. “Such as Fig. 1, the car electron concerns at present three major markets that the car is designed challenge, how to satisfy the ecology enviromental protection , comfortable and convenient strengthening requirementing of safety, and exactly the intersection of car and focus and difficult point that electron designed at present around solve system and subsystem of challenge these. ” He points out. “And the application of LAN, dynamic system, electronic control unit and figure RFID has played an important role in improving the car ecology, safety and comfortableness.
Fig. 1: It initiates designing heat more even more that three major markets that the car is designed challenge
Four major test are analyzed, one can’t even be little
The expert of Tyke emphasizes during the speech, no matter for needing to improve fuel efficiency or adopt the motive force transmission of new energy, contribute to promoting driving and amusing the car bodies and audio-visual amusement systems of comfortableness, whether or safety drive system of braking, turning to etc., the LAN LAN Consumption improve constantly,drive control in order to realizing, car body control or is various wire controlled to operate X-by-wire control ; Because need to raise the energy consumption efficiency of the car, engine control unit and power system of the car become more complicated, and the mixed motive force and clean fuel
Diesel engine The advanced electronic control system of the technical requirement, in order to guarantee security and environmental protection; Utilize the electronic control unit ECU Control basic car system and non- basic car system to become the new sector standard, these ECU is based on digital technique devices such as MCU, FPGA,etc. ,Require that understands complicated regular sum signal completeness question more deeply; The security system of the car adopts tire pressure to monitor TPMS And RFID system, needs to develop and measure the real-time RF system, be able to monitor car operating and state high-efficiently.
1 Test analysis of the LAN
Expert of Tyke explain, arrive in speech, car design Chiang Kai-shek integrate various serial data technology and should with come on, realize LAN, such as CAN, LIN, MOST and FlexRay. Serial communication can improve the circuit board to design, because the serial interface integrates in devices such as processor, ASIC, FPGA,etc., make, connect quantity reduce and assembly total cost drop. The final car is designed to usually include a plurality of serial standard, composite signal, mixing data rate, single-end signal and differentiating signal, this needs a kind of comprehensive expression of high-quality test easy to use to analyze the solution, in order that timing, signal completeness test are analyzed and debugged while finishing signals.
As to serial total collinear debugging of low speed such as commonly used CAN, LIN in the car, it is simple, easy without being offered in the Tyke one ondoscopes DPO/MSO4000 series with, intact high-quality trigger, capture and lasting solutioning. Unless Fig. 2, last search and mark function ondoscope series,can CAN news frames with time stamp after the event list reveal that decode, this function is other competitive products do not possess.
Fig. 2: DPO/MSO4000 series ondoscope CAN solution of Tyke
As to the high-speed differentiating I2C FlexRay in the ascendant, DPO/MSO4000 series offer and debug the solution too. Tyke FlexRay physical layer of Company analyze the software DPO4AUTOMAX still supports the physical layer to analyze in an all-round way, offer a set of intact tools to assess physical layer characteristic, including eyes map analysis, measure synchronously, measure regularly, time interval error TIE ,And can run together with outer computer through USB or Ethernet.
2 System testing analysis of motive force
The dynamic system is undoubtedly a heart of the car, and the high-quality stable operation of electronic circuit correlated to dynamic system determines the characteristic of the completed car behaves to a great extent, among them since include the electronic control box that is realized through ECU, include the power supply circuit of car, especially new energy car.
Data real-time calculation information which the car ECU passes back according to the sensor placed on the car, confirm the optimal engine controls parameter value. Because ECU is built-in to get to the car engine room, the noisy environment is more abominable, because the demand of analysis on high frequency is rising constantly at the same time, especially to microsecond grade, Millisecond and even nano second transient signal or interference-free ability of the overshoot, analyze to traditional ondoscope and probe the high frequency noise of the nano second is challenged. Tyke expert proposes reducing the electric load of the measuring system, including using the differentiating probe of the low input capacitance. Tyke expert hope, carry on the intersection of dynamic system and electronic the intersection of control unit and on-the-spot emulation test offer the test method based on signal source to some engineer with signal source also, for example utilize various car sensor signals of signal generator emulation of AFG3000 series function, if pressure, temperature, speed, rotating and angle position, the engine control unit while employing to the car carries on the functional test and optimizes.
Fig. 3: Utilize AFG302xB and AFG3011 to measure and optimize the engine control unit
The test of the power supply circuit of car is similar to power test on other electronic systems, need to include the switching loss, conducting loss, average power consumption and safety operation area SOA In the inner main performance test. At present, the industry has intact, convenient power apts to use that tests the solution, for example the Tyke Company offers the most intact integrated power supply in the industry to analyze the solution DPO4PWR and DPO3PWR power analyzes the application module, overall test of can realize the switching loss is measured, safety operation area, harmonic wave, ripple, modulating, conversion rating etc., and can realize the automatic measurement function, can simplify the analytical work of the applied power of the car power greatly. The Chinese car output has already exceeded U.S.A. to leap to the first in the world, the following 5-10 years will also keep the situation of constant growth. The Chinese car electronec industries association expects, the output speedup of the car of 2010 is about, expected to reach 15 million 10%. China has already emerged in many famous enterprises at present, including automaker, modular system supplier and components and parts supplier, electronic device trader,etc., the First Automobile Factory of China, the Second Automobile Factory of China, the intersection of hold, Chang An,etc. and native manufacturer than Yardie, Cherry, lucky, boat and considerable progress that make drive China innovate, in develop independently
Car electron Fast development of the industry.
However, in the face of the complicated car design requirement day by day, especially at the time of high side and commercial new energy car while introducing, autonomous innovation and way developed are not the level road. On a car electron technology forum which the expert of Tyke science and technology had held not long ago in order to have ” More than 100 ECUs, software code have already reached 7 million lines ” Toyota Lexus460 car for example,last electronic unit, proportion occupied is higher on car especially cars advanced. “Such as Fig. 1, the car electron concerns at present three major markets that the car is designed challenge, how to satisfy the ecology enviromental protection , comfortable and convenient strengthening requirementing of safety, and exactly the intersection of car and focus and difficult point that electron designed at present around solve system and subsystem of challenge these. ” He points out. “And the application of LAN, dynamic system, electronic control unit and figure RFID has played an important role in improving the car ecology, safety and comfortableness.
Fig. 1: It initiates designing heat more even more that three major markets that the car is designed challenge
Four major test are analyzed, one can’t even be little
The expert of Tyke emphasizes during the speech, no matter for needing to improve fuel efficiency or adopt the motive force transmission of new energy, contribute to promoting driving and amusing the car bodies and audio-visual amusement systems of comfortableness, whether or safety drive system of braking, turning to etc., the LAN LAN Consumption improve constantly,drive control in order to realizing, car body control or is various wire controlled to operate X-by-wire control ; Because need to raise the energy consumption efficiency of the car, engine control unit and power system of the car become more complicated, and the mixed motive force and clean fuel
Diesel engine The advanced electronic control system of the technical requirement, in order to guarantee security and environmental protection; Utilize the electronic control unit ECU Control basic car system and non- basic car system to become the new sector standard, these ECU is based on digital technique devices such as MCU, FPGA,etc. ,Require that understands complicated regular sum signal completeness question more deeply; The security system of the car adopts tire pressure to monitor TPMS And RFID system, needs to develop and measure the real-time RF system, be able to monitor car operating and state high-efficiently.
1 Test analysis of the LAN
Expert of Tyke explain, arrive in speech, car design Chiang Kai-shek integrate various serial data technology and should with come on, realize LAN, such as CAN, LIN, MOST and FlexRay. Serial communication can improve the circuit board to design, because the serial interface integrates in devices such as processor, ASIC, FPGA,etc., make, connect quantity reduce and assembly total cost drop. The final car is designed to usually include a plurality of serial standard, composite signal, mixing data rate, single-end signal and differentiating signal, this needs a kind of comprehensive expression of high-quality test easy to use to analyze the solution, in order that timing, signal completeness test are analyzed and debugged while finishing signals.
As to serial total collinear debugging of low speed such as commonly used CAN, LIN in the car, ondoscopes DPO/MSO4000 series of Tyke offer simple, easy with, intact high-quality trigger, capture and lasting solutioning. Fig. 2, this ondoscope series last search and mark function,can CAN news frames with time stamp after the event list reveal that decode, this function is other competitive products do not possess.
Fig. 2: DPO/MSO4000 series ondoscope CAN solution of Tyke
As to the high-speed differentiating I2C FlexRay in the ascendant, DPO/MSO4000 series offer and debug the solution too. Tyke FlexRay physical layer of Company analyze the software DPO4AUTOMAX still supports the physical layer to analyze in an all-round way, offer a set of intact tools to assess physical layer characteristic, including eyes map analysis, measure synchronously, measure regularly, time interval error TIE ,And can run together with outer computer through USB or Ethernet.
2 System testing analysis of motive force
The dynamic system is undoubtedly a heart of the car, and the high-quality stable operation of electronic circuit correlated to dynamic system determines the characteristic of the completed car behaves to a great extent, among them since include the electronic control box that is realized through ECU, include the power supply circuit of car, especially new energy car.
Data real-time calculation information which the car ECU passes back according to the sensor placed on the car, confirm the optimal engine controls parameter value. Because ECU is built-in to get to the car engine room, the noisy environment is more abominable, because the demand of analysis on high frequency is rising constantly at the same time, especially to microsecond grade, Millisecond and even nano second transient signal or interference-free ability of the overshoot, analyze to traditional ondoscope and probe the high frequency noise of the nano second is challenged. Tyke expert proposes reducing the electric load of the measuring system, including using the differentiating probe of the low input capacitance. Tyke expert hope, carry on the intersection of dynamic system and electronic the intersection of control unit and on-the-spot emulation test offer the test method based on signal source to some engineer with signal source also, for example utilize various car sensor signals of signal generator emulation of AFG3000 series function, if pressure, temperature, speed, rotating and angle position, the engine control unit while employing to the car carries on the functional test and optimizes.
Fig. 3: Utilize AFG302xB and AFG3011 to measure and optimize the engine control unit
The test of the power supply circuit of car is similar to power test on other electronic systems, need conduct to include the switching loss, conducting loss, average power consumption and safety operation area SOA In the inner main performance test. At present, the industry has intact, convenient power apts to use that tests the solution, for example the Tyke Company offers the most intact integrated power supply in the industry to analyze the solution DPO4PWR and DPO3PWR power analyzes the application module, overall test of can realize the switching loss is measured, safety operation area, harmonic wave, ripple, modulating, conversion rating etc., and can realize the automatic measurement function, can simplify the analytical work of the applied power of the car power greatly.
To the characteristic that complete floating tests in the electronic test of the car, the expert of Tyke advises engineers to adopt the great of the relative price in test but the more high differentiating probe of the characteristic at the same time guarantees to dispel the partial influence of the common mode. “Sometimes we test very smoothly single-boards, but go wrong while running in the system, may fail frequently to consider the partial influence of the common mode causes while testing. ” He points out. He has further shared the leading technology of Tyke on the probe with the engineer: “For example, TDP probe conducts the floating voltage measurement on especially suitable for, its input capacitance is smaller than 1pF, and there is unique probe in the industry that can programme the biasing characteristic, are suitable for the
rolling mill bearing realization of the automatic test system. ”
3 Digital device analysis
In electronic control unit, amusement system of information and security subsystem in the car, increasingly many to use figures IC such as MCU, FPGA,etc., has formed various embedded systems. It is pointed out that the expert of Tyke analyzes, different from needing to carry on the multiterm passway, complicated touching off, terms CPU of storing, the disassembler, software debugging of source code level with the logic analyzer, as to the debugging of MCU and FPGA, a of good performance, function disposes the complete mixed video frequency oscilloscope MSO It is enough.
The following are two kinds of common regular measurement
spherical roller bearings in embedded systems: Incident time is separated by very far – -Require within long time with high time the distinguishing rate high sampling rate definitely Gather the multiterm passway long record length ; Jump transfer of the digital state – -Require the acquisition signal within short time, but the distinguishing rate should be very high time definitely. Real-time MSO, MSO4000 substantially as adopting MagniVu application module, is especially suitable for monitoring with the time change. In addition, can set up level respectively in 16 digital channels of MSO4000, can use different logical types in a design, and can touch off build-up time / holding time violation in the multiterm passway.
As to the debugging challenge of FPGA, Tyke expert has enumerated the following several points: 1. Design specification and complexity raise, insert the internal signal limitedly day by day; 2,Listing the intersection of time and pressure force product development and debug cycle to shorten day by day; 3,It influences design performance and takes up the valuable chip space etc. to increase and debug the circuit in FPGA.
Fig. 4: Debug the solution in efficient FPGA real-time logic of economy
Tyke company offered the efficient FPGA real-time logic of economy to debug the solution to meet the challenge of these: MSO4000 mix the video frequency oscilloscope or TLA series logical analysis appearance
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