CN1302347C - Microcomputer control system of internal combustion engine vehicle - Google Patents
Microcomputer control system of internal combustion engine vehicle Download PDFInfo
- Publication number
- CN1302347C CN1302347C CNB031245315A CN03124531A CN1302347C CN 1302347 C CN1302347 C CN 1302347C CN B031245315 A CNB031245315 A CN B031245315A CN 03124531 A CN03124531 A CN 03124531A CN 1302347 C CN1302347 C CN 1302347C
- Authority
- CN
- China
- Prior art keywords
- circuit
- locomotive
- download
- switching value
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- Y02T30/34—
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
- Stored Programmes (AREA)
Abstract
The present invention relates to a novel microcomputer control system of an internal combustion locomotive. The microcomputer control system comprises a CPU circuit 1, a switching value input circuit 2, a switching value output circuit 3, an analogue quantity processing circuit 4 and a system interface circuit 5, wherein the switching value input circuit 2 completes the detection of 110V switching value signals of a locomotive; the switching value output circuit 3 completes the drive of a 110V electric appliance of the locomotive and the pulse control of an excitation circuit; the analogue quantity processing circuit 4 completes the sampling of analogue signals of a power source, voltage, etc. of the locomotive; the system interface circuit 5 samples speed signals of the locomotive and drives serial communication interfaces; a 32-bit microprocessor is used, and a procedure downloading function is additionally provided to make the running speed of the microcomputer control system greatly increased as compared with the past control system; procedure downloading can be conveniently carried out, the operation is flexible, and the operating efficiency and the reliability are increased.
Description
Technical field
The present invention relates to a kind of control system of diesel locomotive.
Technical background
The quasi high-speed diesel locomotive of present east wind 11 types adopts TWP5 type microcomputer control cabinet; used 16 digit microcomputer; can carry out permanent merit excitation and anti-idle running control by assembling suitable software; and diesel engine and electric equipments protected; can carry out fault diagnosis by being connected, show and record with display screen.Because be to adopt 16 digit microcomputer, its travelling speed is lower, the function upgrading possibility is little, and not in the sequence of threads download function.
Technology contents
Purpose of the present invention is providing a kind of control system of diesel locomotive, and it has higher travelling speed, and complete function has in the sequence of threads download function.
It comprises cpu circuit 1, finish switching value input circuit 2 to locomotive 110V switching value input, finish switching value output circuit 3 to the driving of locomotive 110V electrical equipment and energized circuit copped wave control, finish the analog quantity treatment circuit 4 of the sampling of simulating signals such as electrical locomotive power, voltage and system interface circuit 5 that the interface of the sampling of locomotive speed signal and serial communication is driven;
Described cpu circuit 1 links to each other by system bus respectively with switching value input circuit 2, switching value output circuit 3, analog quantity treatment circuit 4 and system interface circuit 5;
Described cpu circuit 1 comprises 32-bit microprocessor MC68332, providing links to each other with outer computer finishes program download interface circuit 6, storer 7 and the system bus interface 8 of online software download service, storer 7 comprises RAM and flash memory FLASH, and wherein RAM has the battery RAM10 and two kinds of the RAM of charged pool not.
Control Software in the storer of the 32-bit microprocessor MC68332 of described cpu circuit 1 comprises the bottom plate level support package (BSP) that driver is provided for hardware interface circuit, is responsible for operating system (VRTX RTOS) layer and the user application layer of application program module Real-Time Scheduling.
Described program download interface circuit 6 comprises the PROG of the 32-bit microprocessor MC68332 of an end and described cpu circuit 1
*, three ports of 332TXD, 332RXD link to each other, the other end links to each other with outer computer communication interface 9, battery RAM10 and the flash memory 11 that links to each other with microprocessor MC68332 by address wire and data line respectively, and (CSBOOT) port of described microprocessor MC68332 selectively links to each other with (FLASHCS) port of described flash memory 11 or (MEMCSI/MEMES2) port of battery RAM10 by electronic switch K1, K2 respectively with (CS0/CS1) port, and flash memory is FLASH.
Described program download interface circuit 6 is to finish the program down operation according to the following steps:
The first step: the program bit port (PROG that detects microprocessor MC68332
*), system normally moves if it is invalid, if effectively and battery RAM district download, just carry out RAM district and download, finish the program download, go on foot otherwise carry out second;
Second step: if download among the FLASH, just carry out FLASH and download, the program of finishing is downloaded, and automatic operation downloads from flash memory duplicating to battery RAM after system normally moves; Otherwise, finish because of carrying out the program download.
Because the present invention adopted 32-bit microprocessor, and set up the program download function, make its travelling speed more in the past control system greatly improve, and can carry out program easily and download, flexible operation has improved operational efficiency and reliability.
Description of drawings
Fig. 1 is a principle of the invention block diagram;
Fig. 2 is program download interface circuit theory diagrams;
Fig. 3 is the program process flow diagram that downloads.
Embodiment
As Figure 1-3, it comprises cpu circuit 1, finishes switching value input circuit 2 to locomotive 110V switching value input, finishes switching value output circuit 3 to the driving of locomotive 110V electrical equipment and energized circuit copped wave control, finishes the analog quantity treatment circuit 4 of the sampling of simulating signals such as electrical locomotive power, voltage and system interface circuit 5 that the interface of the sampling of locomotive speed signal and serial communication is driven;
Described cpu circuit 1 links to each other by system bus respectively with switching value input circuit 2, switching value output circuit 3, analog quantity treatment circuit 4 and system interface circuit 5;
Described cpu circuit 1 comprises 32-bit microprocessor MC68332, and providing links to each other with outer computer finishes program download interface circuit 6, storer 7 and the system bus interface 8 of online software download service.Storer 7 comprises RAM and flash memory FLASH, and wherein RAM has the battery RAM10 and two kinds of the RAM of charged pool not, and wherein program download interface circuit 6, storer 7 and system bus interface 8 all link to each other with MC68332.
MC68332 has adopted modular structural design, mainly comprises: CPU module CPU32, system integration module SIM, queued serial module QSM, on-chip memory module RAM, Timing Processing device module TPU etc.
Central processor CPU 32 is CPU of 32, is the nucleus module of system, the full-motion of management C68332 and external unit, and it is by each module communication of internal bus and MC68332.
Sim module comprises clock synthesizer, chip selection, external bus interface, system protection and system testing submodule etc., and each module is finished independently function.
Queued serial module QSM is respectively formation serial peripheral interface QSPI and formation communication interface SCI for MC68332 provides two independently serial communication interfaces.
TPU can be independent of outside the CPU, carries out the operations relevant with the time such as various timings, pulse generation, motor control, offloading the CPU greatly.
Used VRTX RTOS embedded real-time multi-task operating system in the novel Control System of Microcomputer software development.
The core of VRTX-high-performance real-time multi-task operating system is a kind of silicon software part that is applicable to embedded microprocessor, provides following true-time operation desired characteristic:
Multitask is supported
Driving incident (event-driven) is based on the scheduling of right of priority
Intertask communication and synchronous
Dynamic memory allocation
Real-time clock control has optional timeslice (time-slicing)
Character type I/O supports
Real-time responsiveness
Had these characteristics, VRTX just provides solid foundation for real-time, multitask application.
Task (Task) is a most important operand among the RTOS, and each task is carried out by the CPU timesharing under the calling of RTOS.Activate or current task is the task that CPU is carrying out, and the task of dormancy is the context that keeps its execution in storer, can continue the task of carrying out from the end that carried out last time in case switch to current task.The scheduling of task mainly contains time slicing formula (TimeSlicing), in turn query formulation (Round-Robin) and preferential three kinds of preemptive types (Preemptive) at present, different RTOS may support wherein one or more, and wherein preferential preemptive type is best to the support of real-time.
The system CPU under the RTOS management and the time of system resource are to distribute to different task simultaneously, seem to resemble many tasks like this and carry out at the same time, but in fact each has only a task carrying out constantly, just current task.The switching of task has two kinds of reasons.When a task normally during end operation, it just gives RTOS the CPU control, and RTOS then checks all tasks in the task queue, and the priority of that task is the highest below judging, needs to carry out earlier.Another kind of situation is that interruption has taken place the higher task of priority when a task is carried out, and at this moment RTOS just preserves the context of current task, switches to interrupt task.RTOS puts task queue in order regularly, and the task that deletion finishes increases new will executing the task, and it is got up according to priority series arrangement from big to small, so reasonably distributing system resource between each task.
Message (Message) and mailbox (Mailbox) are the carrier of data transfer and channels between the task among the RTOS, and a task can have a plurality of mailboxes.By mailbox, can transmit information asynchronously between each task, do not take the inquiry and the wait of CPU time.When RTOS comprised on-chip bus interface driving function, the communication between each single-chip microcomputer was also undertaken by the mode of mailbox, and the user does not need to understand the darker content about hardware.
Signal lamp (Semaphore) is equivalent to a kind of sign (Flag), and by presetting, the generation of an incident can change signal lamp.A task can decide its action by the variation of monitor signal lamp, does not consume CPU time when the monitor signal lamp changes, and signal lamp is finished by RTOS the triggering of task.By using signal lamp, a task just can constantly be inquired about when waiting event changes, and CPU time is sold to other task.
RTOS distributes unitedly the system memory block, and the mode of distribution can be dynamic or static, and each task all will be to the application of RTOS kernel when the needs memory block.RTOS can prevent scrappyization of memory block by using storage allocation class core Object Management group data-carrier store when dynamic assignment.
RTOS provides a kind of general interrupt management that is designed for, and is efficient and flexible, can realize minimum interruption latent time and maximum interrupt response degree like this.Resource object class in the RTOS kernel then realized the visit of the formula of monopolizing of system entity resource or virtual resource, and task can obtain the unique access right to resource, and other task can't be visited before resource discharges, and can avoid resource contention like this.Design perfect RTOS and have the resource transfer design that inspection may cause system deadlock.
Control system software divides three layers: application layer, VRTX RTOS (operating system) layer and BSP layer.
Bottom is a plate level support package (BSP), is the hardware interface circuit driver; Middle one deck is VRTX RTOS (operating system) layer, is responsible for the timer-triggered scheduler of application program module; Top layer is a user application.
Control Software in the storer of the 32-bit microprocessor MC68332 of described cpu circuit 1 comprises the bottom plate level support package (BSP) that driver is provided for hardware interface circuit, is responsible for the intermediary operation system (VRTX RTOS) and the user application layer of application program module Real-Time Scheduling.
Described program download interface circuit 6 comprises the PROG of the 32-bit microprocessor MC68332 of an end and described cpu circuit 1
*, three ports of 332TXD, 332RXD link to each other, the other end links to each other with outer computer communication interface 9, battery RAM10 and the flash memory 11 that links to each other with microprocessor MC68332 by address wire and data line respectively, and (CSBOOT) port of described microprocessor MC68332 and (CS0/CS1) port selectively link to each other respectively by electronic switch K1, K2 with (FLASHCS) port of described flash memory 11 or (MEMCS1/MEMES2) port of battery RAM10;
Described program download interface circuit 6 is to finish the program down operation according to the following steps:
The first step: the program bit port (PROG that detects microprocessor MC68332
*), system normally moves if it is invalid, if effectively and battery RAM district download, just carry out RAM district and download, finish the program download, go on foot otherwise carry out second;
Second step: if download among the FLASH, just carry out FLASH and download, the program of finishing is downloaded, and automatic operation downloads from flash memory duplicating to battery RAM after system normally moves; Otherwise, finish because of carrying out the program download.
The present invention is the Control System of Microcomputer of new generation for diesel locomotive (motor train unit) exploitation, it is the first Application 32-bit microprocessor in homemade locomotive computer control device, all adopt SMT technology, system has very strong modular construction and control function, is that the function of domestic existing control system of diesel locomotive expands and upgraded product.Because the present invention adopted 32-bit microprocessor, and set up the program download function, make its travelling speed more in the past control system greatly improve, and can carry out program easily and download, flexible operation has improved operational efficiency and reliability.
Claims (5)
1, a kind of control system of diesel locomotive is characterized in that it comprises cpu circuit (1), finishes switching value input circuit (2) to locomotive 110V switching value input, finishes switching value output circuit (3) to the driving of locomotive 110V electrical equipment and energized circuit copped wave control, finishes the analog quantity treatment circuit (4) of the sampling of electrical locomotive power, voltage analog signal and system interface circuit (5) that the interface of the sampling of locomotive speed signal and serial communication is driven;
Described cpu circuit (1) links to each other by system bus respectively with switching value input circuit (2), switching value output circuit (3), analog quantity treatment circuit (4) and system interface circuit (5);
Described cpu circuit (1) comprises 32-bit microprocessor MC68332, and providing links to each other with outer computer finishes program download interface circuit (6), storer (7) and the system bus interface (8) of online software download service.
2, a kind of control system of diesel locomotive as claimed in claim 1 is characterized in that described storer (7) comprises RAM and flash memory FLASH, and wherein RAM has the battery RAM (10) and two kinds of the RAM of charged pool not.
3, a kind of control system of diesel locomotive as claimed in claim 1, it is characterized in that the Control Software in the storer of 32-bit microprocessor MC68332 of described cpu circuit (1) comprises the bottom plate level support package BSP that driver is provided for hardware interface circuit, is responsible for the VRTX RTOS of intermediary operation system and the user application layer of application program module Real-Time Scheduling.
4, a kind of control system of diesel locomotive as claimed in claim 1 is characterized in that described program download interface circuit (6) comprises the PROG of the 32-bit microprocessor MC68332 of an end and described cpu circuit (1)
*, three ports of 332TXD, 332RXD link to each other, the other end links to each other with outer computer communication interface (9), battery RAM (10) and the flash memory (11) that links to each other with microprocessor MC68332 by address wire and data line respectively, and the CSBOOT port of described microprocessor MC68332 and CS0/CS1 port by electronic switch K1, electronic switch K2, selectively link to each other with the FLASHCS port of described flash memory (11) or the MEMCS1/MEMES2 port of battery RAM (10) respectively.
5, a kind of control system of diesel locomotive as claimed in claim 1 is characterized in that described program download interface circuit (6) is to finish the program down operation according to the following steps:
The first step: the program bit port PROG that detects microprocessor MC68332
*If its invalid then system normally moves, if effectively and battery RAM district download, just carry out RAM district and download, finish the program download, go on foot otherwise carry out second;
Second step: if download among the FLASH, just carry out FLASH and download, the program of finishing is downloaded, and automatic operation downloads from flash memory duplicating to battery RAM after system normally moves; Otherwise, finish because of carrying out the program download.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031245315A CN1302347C (en) | 2003-06-06 | 2003-06-06 | Microcomputer control system of internal combustion engine vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031245315A CN1302347C (en) | 2003-06-06 | 2003-06-06 | Microcomputer control system of internal combustion engine vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1513713A CN1513713A (en) | 2004-07-21 |
| CN1302347C true CN1302347C (en) | 2007-02-28 |
Family
ID=34239539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031245315A Expired - Lifetime CN1302347C (en) | 2003-06-06 | 2003-06-06 | Microcomputer control system of internal combustion engine vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1302347C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1897623B (en) * | 2006-06-26 | 2011-03-30 | 株洲南车时代电气股份有限公司 | Method and apparatus for controlling, diagnosing and telecommunication managing locomotive and automobile |
| CN101832620B (en) * | 2009-03-09 | 2013-01-02 | 北京天宇飞鹰微电子***技术有限公司 | Air-conditioning controller for train environment |
| CN102303613B (en) * | 2011-06-21 | 2013-09-18 | 株洲南车时代电气股份有限公司 | Diesel engine and storage battery pack-based dual-power locomotive control method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891588A (en) * | 1987-07-01 | 1990-01-02 | Matsushita Electric Industrial Co., Ltd. | Device for detecting rotation speed having feedback circuitry and improved frequency-response |
| US5029289A (en) * | 1987-12-21 | 1991-07-02 | Ncr Corporation | Character display system |
| CN1108605A (en) * | 1994-03-18 | 1995-09-20 | 成都铁路机车车辆厂 | Micro computer monitoring and controlling apparatus for water-resistance dynamometering system of diesel locomotive and method thereof |
| CN2452802Y (en) * | 2000-12-08 | 2001-10-10 | 武民利 | Carried by locomotive-type route dynamic monitoring device |
-
2003
- 2003-06-06 CN CNB031245315A patent/CN1302347C/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4891588A (en) * | 1987-07-01 | 1990-01-02 | Matsushita Electric Industrial Co., Ltd. | Device for detecting rotation speed having feedback circuitry and improved frequency-response |
| US5029289A (en) * | 1987-12-21 | 1991-07-02 | Ncr Corporation | Character display system |
| CN1108605A (en) * | 1994-03-18 | 1995-09-20 | 成都铁路机车车辆厂 | Micro computer monitoring and controlling apparatus for water-resistance dynamometering system of diesel locomotive and method thereof |
| CN2452802Y (en) * | 2000-12-08 | 2001-10-10 | 武民利 | Carried by locomotive-type route dynamic monitoring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1513713A (en) | 2004-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101160565B (en) | Mechanism to schedule threads on os-sequestered without operating system intervention | |
| CN1118760C (en) | Dynamic processor performance and power management in computer system | |
| US8972699B2 (en) | Multicore interface with dynamic task management capability and task loading and offloading method thereof | |
| Milojičić et al. | Process migration | |
| US8261284B2 (en) | Fast context switching using virtual cpus | |
| US7996593B2 (en) | Interrupt handling using simultaneous multi-threading | |
| EP0794492B1 (en) | Distributed execution of mode mismatched commands in multiprocessor computer systems | |
| CN101727351B (en) | Multicore platform-orientated asymmetrical dispatcher for monitor of virtual machine and dispatching method thereof | |
| CN1991768B (en) | Instruction set architecture-based inter-sequencer communicating with a heterogeneous resource | |
| CN110888743B (en) | GPU resource using method, device and storage medium | |
| US5257372A (en) | Methods for efficient distribution of parallel tasks to slave processes in a multiprocessing system | |
| US5390329A (en) | Responding to service requests using minimal system-side context in a multiprocessor environment | |
| US20050132363A1 (en) | Method, apparatus and system for optimizing context switching between virtual machines | |
| CN101038543A (en) | Apparatus, system, and method for persistent user-level thread | |
| EP2296089A2 (en) | Operating systems | |
| CN1906587A (en) | Methods and apparatus for reducing power dissipation in a multi-processor system | |
| CN88100704A (en) | The method and apparatus of multiple processing | |
| CN101013388A (en) | Heterogeneous multi-core system-oriented process scheduling method | |
| CN1916855A (en) | System of virtual machine, and method for configuring hardware | |
| CN1890634A (en) | Optimization of SMI handling and initialization | |
| CN1302347C (en) | Microcomputer control system of internal combustion engine vehicle | |
| Dales | Managing a reconfigurable processor in a general purpose workstation environment | |
| CN1596396A (en) | Vliw architecture with power down instruction | |
| CN100352199C (en) | Remote power-on functionality in a partitioned environment | |
| CA1162312A (en) | Queueing of work requests to independent task |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SOUTH ZHUZHOU ELECTRIC LOCOMOTIVE INSTITUTE CO., L Free format text: FORMER NAME OR ADDRESS: ZHUZHOU SHIDAI GROUP CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Changjiang Patent Office of Changjiang Road Science Building, Tianyuan District, Hunan, Zhuzhou Patentee after: CSR ZHUZHOU ELECTRIC LOCOMOTIVE RESEARCH INSTITUTE Co.,Ltd. Address before: Changjiang Patent Office of Changjiang Road Science Building, Tianyuan District, Hunan, Zhuzhou Patentee before: ZHUZHOU TIMES ELECTRIC Group |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070228 |
|
| CX01 | Expiry of patent term |