《底盘车身电子控制技术复习资料（Review of electronic control technology for chassis and body）.doc》由会员分享，可在线阅读，更多相关《底盘车身电子控制技术复习资料（Review of electronic control technology for chassis and body）.doc（15页珍藏版）》请在三一文库上搜索。
1、底盘车身电子控制技术复习资料（Review of electronic control technology for chassis and body）This paper contributed by zjm2652850.Doc document may at the WAP end of the browsing experience poor. Suggest you select TXT, or download the source file to the machine view.08 vehicle inspection and maintenance technology c
2、hassis electronic control technology automobile detection and maintenance technology specialty chassis electronic control technology (book review body to live their own stable answer) review (body live on their stable answer)A fill in the blanks.1. automatic transmission mainly by the hydraulic torq
3、ue converter, gear shifting, execution_ mechanism, hydraulic control system and electronic control system of five parts.2. single row planetary gear mechanism by _ sun gear ring and a planetary gear frame _. The 3. one-way clutch has _ roller type one-way clutch and fast _ wedge type one-way clutch
4、two, its role is _Limit the number of moving elements can only do single direction rotation or restriction of two elements in one direction of rotation of its own, which restrict each other in the opposite direction. 4. automatic transmission road test is the main content: _ check shift speed, _ shi
5、ft quality and shift actuator without slipping phenomenon. Most of the 5. automatic transmission ND delay time is less than _1.01.2S, the NR hysteresis time is less than 1.21.5S. If ND delay time is too long, that the main oil pressure is low or _ forward clutch wear too much, the front of the one-w
6、ay clutch bad work. 6. cars equipped with automatic transmission upshift and downshift point is different, the opening degree of the same speed is lower than that of the upshift downshift speed in the solar term door. 7. automatic transmission upshift and downshift is completely controlled by _ spee
7、d _ and _ engine load size.8. wheel is not started in steam at low speeds, increasing the transmission input torque.9. drive slip system is by adjusting the drive torque of the driving wheel to drive the wheel slip control implementation. The elastic supporting element, damper 10. wheel and body sta
8、te can only passively depend on the road and driving conditions and vehicleSuspension and steering mechanism of passive suspension:. 11. according to the driving conditions at any time, stiffness and shock absorber damping force of suspension system and body height and posture adjustment in the best
9、 state of active suspension is a suspension. The performance of the car has only 12. of the shock absorber damping force is adjusted, some of the horizontal stabilizer rigidity adjustable suspension is a semi-active suspension suspension. 13. if the stall speed is higher than the standard value, tha
10、t _ main oil line oil pressure is too low or the shift actuator slipping; below the standard value may be insufficient _ engine power or torque converter fault. 14. Toyota Corporation automatic transmission for Arabia figures before and after the drive, the transmission model in 1, 2, 5 said to driv
11、e the gearbox, 3, said after the 4 drive gearbox drive. The 15. is _ clutch driving effect, and _ fixation. Brakes and one-way clutch only _ fixation. 16. evaluation of braking efficiency braking distance, the main evaluation index _ _ braking time, braking deceleration _.17. ABS by _ electronic sen
12、sors, electronic control unit (ECU) and _ _ actuator. 18. according to different braking system ABS, brake pressure regulator main hydraulic, pneumatic and hydraulic type air force. According to the 19.ABS control channel number: four channel type classification _ _, _ three channel, two channel _ _
13、 _, _ single channel.08 vehicle inspection and maintenance technology chassis electronic control technology to review the data of first page 720. cycle type brake pressure regulator in the braking process, ECU control through the brake pressure regulator solenoid coil powerThe size of the flow, ABS
14、for _ _, boost pressure, decompression in three states. The 21.ABS system is to prevent the wheels from locking when braking and driving wheel slip, ASR is to prevent stagnant and kept slipping. The basic structure of 22.ASR sensors, ECU_, actuator etc. 23. electronic control suspension system has t
15、he function of _ vehicle height adjustment control damper force of spring stiffness control. 24. electronic control suspension system according to the medium can be divided into pneumatic and hydraulic. According to the control theory can be divided into active and semi active _ _. 25. active suspen
16、sion according to bandwidth and energy consumption is different, can be divided into _ fully active and slow _ all active. According to the driving mechanism and the medium is divided into oil and gas solenoid valve driving active suspension and driven by a stepping motor air active suspension 26. i
17、ntegral and semi open hydraulic power steering system, in accordance with the steering control valve can be divided into different forms of _ rotary valve type, valve type and _ valve type _ etc. the structure of the form. 27. hydraulic EPS is in the traditional hydraulic power steering system is ad
18、ded on the basis of the _ control liquid flow solenoid valve, speed sensor and _ electronic control unit. 28. typical hydraulic torque converter is composed of _ pump turbine wheel, guide wheel, _ _ _. _ pump wheel _ input element torque converter; turbine output torque converter components.Two to d
19、etermine the problem.1.ABS is regulated by the brake wheel cylinder in the braking process (or brake chamber) of the braking force of brake pressure acting on the wheelMoment under control, and the wheel slip rate control in the desirable range. (V) 2.ABS to prevent the wheels from locking wheels, a
20、void pure slip on the road, improve vehicle during braking direction stability and steering ability, shorten the braking distance. (V) 3.ASR to prevent the car skidding during acceleration, especially to prevent cars on the road or in the asymmetric turn of the drive wheels when idling stability to
21、keep the car driving direction, control and maintain the best car driving force and improve vehicle ride comfort. (V) 4. to the power steering system should the power increases with increasing speed. (X) 5. old hydraulic control automatic transmission with solar term door cable, no door automatic tr
22、ansmission cable solar term. (V) 6. oil level is too high will affect the implementation of components of the smooth separation and shift stability. (V) the 7. solar term door opening,Auto upshift and downshift moment depends on the speed. (V) 8. with the pump wheel torque converter shell is rigid c
23、onnection. (V) 9. in order to ensure complete separation of disc brake, the gap between the steel plate and the friction plate of some good. (X) the 10. engine does not work when the pump does not pump oil, no transmission hydraulic control. (V) the 11. elected retaining lever in the forward gear, t
24、he manual valve in addition to the main oil pressure oil directly into the forward clutch, also will be the main oil pressure oil into the shift valve. (V) 12. index evaluation of braking performance of main braking efficiency and stability. (V) the 13. braking efficiency mainly depends on the magni
25、tude of braking force, braking force and friction torque and brake only. (X) 14.ASR output power control system to control the engine by opening the door to change engine auxiliary solar term. (V) TOYOTA 15. car antilock braking and acceleration slip (ABS/TRC) work, when applying the brake torque of
26、 the driving wheel: 3 TRC solenoid valve is not energized. (X)08 vehicle inspection and maintenance technology chassis electronic control technology to review the data of second page 7The TOYOTA car antilock braking and acceleration slip (ABS/TRC) work, when the need to reduce the driving wheel brak
27、ing torque: 2 solenoid valve ABS through small current. (X 17.) to prevent differential wheel slip, can automatically control the car driving wheel slip slip differential. (V) the 18. brake pressure regulator function is to accept the orders of ECU, realize the automatic adjusting wheel brake pressu
28、re through the solenoid valve action. (V) braking system with 19. brake vacuum booster, the exhaust before operation, first of all to the brake booster control device is switched on, the power of the braking system. (X) 20.ABS exhaust time than the average system short, less consumption of brake flu
29、id. 21. (X) has just released the brake fluid can be added back to the liquid storage tank, in sealed glass bottles to rest for 12 hours, can be used in brake fluid drained after the bubble. (X) from slipping and losing the steering ability has nothing to do with the lateral adhesion between the whe
30、el and the ground between the 22. brake (X) 23. wheel lock will cause the vehicle braking stability becomes worse. (V) 24. electronic ABS consists of sensors, electronic control unit, and actuator group. (V) 25. with the automobile electronic control suspension system regardless of vehicle load much
31、, can keep the vehicle height, body level. (V) 26. in order to have a better road, in low speed should be greater steering force at high speed with smaller steering force. (X) 27. flow control type EPS is based on the vehicle speed sensor signal conditioning power steering fluid pressure supply devi
32、ce, change the input and output flow of hydraulic oil, to control the steering force. (V) 28. electric EPS is used as a power source DC motor, electronic control unit according to the parameters and vehicle speed signal, the magnitude and direction of the motor torque control. (V)SixteenThree, choic
33、e of 1. hydraulic automatic transmission (A) is the abbreviation of. A.at b.mt c.cvt d.tcs 2. (a) 防抱死制动系统的缩写为. a. abs b.asrc.cvt d.tcs 3. 电控驱动防滑控制系统的缩写为 (b). a. abs b.asrc.cvt d.tcs 4. 甲说: 变矩器单向离合器打滑会造成汽车低速时加速不良.乙说: 变矩器单向离合器卡滞 会造成汽车中高速时加速不良. (c) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 5. 甲说: 汽车低速时车速上不去, 中高速时
34、一切正常是变矩器单向离合器坏了.乙说: 汽车 低速时加速良好, 中高速时车速上不去, 也可能是变矩器内单向离合器损坏. (b) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 6. 甲说: d 位上失速转速高, 1 位和 2 位失速转速正常, 说明前驱的低档离合器或后驱的前 进档离合器打滑.乙说: d 位失速转速高不排除低档单向离合器打滑的可能性. (b) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 7. 甲说: 所有的汽车都可以作失速试验.乙说: 车况极差、过于陈旧的汽车不易作失速试验. (b) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 8
35、. 甲说: 变矩器故障只会引起汽车低速时加速不良.乙说: 变矩器不能进入锁止工况或支承 导轮的单向离合器打滑都会造成汽车中高速时加速不良, 车速会上不去. (b)08 级汽车检测与维修技术专业底盘车身电子控制技术复习资料第 3 页 共 7 页a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 9. 甲说: 泵轮是被变矩器壳驱动, 油泵是被变矩器驱动毂驱动, 所以它们都是和曲轴同步运 转.乙说: 泵轮是用花键连接在变速器输入轴上, 而被涡轮抛出的液流驱动. (a) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 10. 甲说自动变速器油加少了会造成打滑, 乙说油加多了会造
36、成换档粗暴. (c) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 11. 甲说自动变速器油加少了, 空气会侵入油道.乙说油加多了, 空气也会侵入油道. (a) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 12. 自动变速器油变黑色, 并有恶臭味, 甲说自动变速器油被氧化, 乙说离合器或制动器被烧 蚀了. (b) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 13. 甲说发动机、 变速器工作负荷越大换油周期应越短. 乙说如使用条件恶劣应缩短换油周期. (c) a. 甲正确 b.乙正确 c.两人都正确 d.两人都不正确. 14. 甲说检查自动变速
37、器油的液面高度,Only in the heat of the idle state. B said check level, as long as the car parked on the ground can be. (D) A. a B. B C. two right right right D. two are not correct. 15. of the following statements is not true (D). A. brake, turn the steering wheel, the steering wheel will feel a slight vib
38、ration. B. brake, the brake pedal will have a slight sinking. C. when braking action ABS relay continuously, which is the normal phenomenon of normal ABS. D. ABS equipped car, in the brake wheel lock phenomenon does not appear later. 16. when the slip ratio is 100%, the lateral adhesion coefficient
39、reduced (C). 17. A.100% B.50% C.0 D. is correct 18. cycle type brake pressure regulator is in the brake master cylinder and wheel cylinder (A) between a direct control solenoid valve, the brake pressure of the wheel cylinder. A. series B. parallel C. can be above D. incorrect answers are 19. cycle t
40、ype brake pressure regulator in the process of increasing pressure, solenoid valve in the boost position, the electromagnetic coil of the current access to (A). 20. A.0 B. C. D. The smaller current maximum current were not correct 21. cycle brake pressure regulator in the packing process, solenoid v
41、alve in the pressure position, the electromagnetic coil of the current access to (B). A.0 B. C. D. low current maximum current is not correct 22. cycle type brake pressure regulator in the decompression process, solenoid valve in the decompression position, the electromagnetic coil of the current ac
42、cess to (C). A.0 B. C. D. low current maximum current is not correct when the slip ratio is 23. (A), peak adhesion coefficient. A.20% B 0 C 100% D. 50% in the following 24. anti-skid control mode, reaction time is the shortest (B). The A engine output power control B driving wheel brake control C an
43、ti slip differential lock control D differential lock and the output power of the engine control. 25. anti-skid control according to the slippage of the drive wheel, to control the engine speed and the braking force by the electronic control device; or in accordance with the left and right wheel spe
44、ed difference to control torque and, combined with the optimal allocation of the driving wheel brake drive08 vehicle inspection and maintenance technology chassis electronic control technology to review the data of fourth page 7For differential (C). A. locking B. automatic locking type C. wet differ
45、ential D. active slip differential sensor using 26. master all kinds of road conditions and vehicle motion state, by manipulating the accelerator pedal and brake, the driver set and read the information, and according to the drivers wishes and demands about optimal allocation of driving wheel differ
46、ential drive (for D). A. locking B. automatic locking type C. wet differential D. active slip differential 27. active suspension band width (B). A more than 5HZ B more than 15 HZ C less than 15 HZ D less than 5 HZ total 28. slow active suspension band width (B). A B 3-6 HZ C more than 6HZ less than
47、3 HZ D above 29. are not correct the whole hydraulic power steering system (C) is. A.Steering, power steering, steering control valve three is arranged separately. B. power steering and steering control valve are combined into a whole. C. steering, power steering, steering control valve three are co
48、mbined into a whole. D. all of the above is not correct. 30. semi open hydraulic power steering system (B) is. A. steering, power steering, steering control valve three is arranged separately. B. power steering and steering control valve are combined into a whole. C. steering, power steering, steeri
49、ng control valve three are combined into a whole. D. all of the above is not correct. 31. automatic transmission (B) is designed to measure the maximum speed of the engine to determine the basic performance of the automatic transmission and the engine, in order to eliminate the engine itself (such as engine fault symptom caused by insufficient power). B, C, D delay stall test test, road test and A test of 32. hydraulic