PROFESSIONAL ENGLISH UNIT 13 AUTOMOTIVE COMPUTERS AND COMMUNICATION SYSTEM TEXTA Computers on Modern Vehicles
UNIT 13 AUTOMOTIVE COMPUTERS AND COMMUNICATION SYSTEM TEXT A Computers on Modern Vehicles PROFESSIONAL ENGLISH
本次课学习内容 TEXTA Computers on Modern Vehicles Computers Central Processing Unit Temporary Computer Memory Permanent Computer Memory Computer Control Operation Open and closed Loop Operation Input Sensors Output Devices
TEXT A Computers on Modern Vehicles Computers Central Processing Unit Temporary Computer Memory Permanent Computer Memory Computer Control Operation Open and Closed Loop Operation Input Sensors Output Devices 本次课学习内容
本次课学习目标 ●掌握 automoti ve computer的英文专业词汇 ●训练快速阅读能力,提高阅读速度
本次课学习目标 ⚫ 掌握automotive computer的英文专业词汇 ⚫ 训练快速阅读能力，提高阅读速度
NEW WORDS defective [di fektiv] a有缺陷的,损坏的,有故障的 affix [afis] v使附于,粘贴,使固定 revise [ri'vaizI v修订,修正,修改 nonvolatile['nn' volatil]a,非易失性的 ultraviolet[№ tra'vaialit]a,紫外线的,紫外的 random[ rendan]a任意的随机的;n随意,任意 volatile ['voletail] a可变的,易失的,不稳定的
NEW WORDS defective [di'fektiv] a.有缺陷的, 损坏的，有故障的 affix [ə'fiks] v.使附于, 粘贴，使固定 revise [ri'vaiz] v.修订, 修正, 修改 nonvolatile ['nɔn'vɔlətail] a.非易失性的 ultraviolet ['ʌltrə'vaiəlit] a.紫外线的, 紫外的 random ['rændəm] a.任意的, 随机的; n.随意, 任意 volatile ['vɔlətail] a.可变的, 易失的，不稳定的
fuel mileage 燃油经济性 burn in 烧上,烙上,腐蚀,留下不可磨 灭的印象 volatile memory 遗失存储器 keep alive memory 可保持存储器(KAM (KAM) read only memory 只读存储器(RoM) (ROM) programmable read可编程只读存储器(PRoM) only memory (Prom) erasable programmable可擦可编程只读存储器( EPROM) read only memory(EPROM)
fuel mileage 燃油经济性 burn in 烧上，烙上，腐蚀，留下不可磨 灭的印象 volatile memory 遗失存储器 keep alive memory (KAM) 可保持存储器(KAM) read only memory (ROM) 只读存储器(ROM) programmable read only memory (PROM) 可编程只读存储器(PROM) erasable programmable read only memory(EPROM) 可擦可编程只读存储器(EPROM)
electronically erasable电可擦可编程只读存储器 programmable read (EEPROM) only memory (EEPROM) over and over 反复 in nature 本质上,实际上
electronically erasable programmable read only memory (EEPROM) 电可擦可编程只读存储器 (EEPROM) over and over 反复 in nature 本质上，实际上
Computers on Modern Vehicles Almost every vehicle built in the last 10-15 years has at least one on-board computer. There may be up to six different computers on some vehicles On-board computers control ignition and fuel systems, emission controls, cooling fans air conditioner compressor torque converter clutch and transmission shift points other vehicle computers control the air bags, anti-lock brake and traction control systems, interior air temperature and distribution, suspension and steering systems, and the anti-theft system. Many modern vehicles combine the engine control computer and other vehicle computers into one large microprocessor, which monitors and controls most vehicle functions
Computers on Modern Vehicles Almost every vehicle built in the last 10-15 years has at least one on-board computer. There may be up to six different computers on some vehicles. On-board computers control ignition and fuel systems, emission controls, cooling fans, air conditioner compressor, torque converter clutch, and transmission shift points. Other vehicle computers control the air bags, anti-lock brake and traction control systems, interior air temperature and distribution, suspension and steering systems, and the anti-theft system. Many modern vehicles combine the engine contro1 computer and other vehicle computers into one large microprocessor, which monitors and controls most vehicle functions
The primary reason for using on-board computers in modern vehicles is to meet fuel economy and emissions regulations The use of computers allows the ignition fuel, and emission systems operations to be controlled precisely. The end result is a stoichiometric air- fuel ratio that is as close to 14.7: 1 as possible This air-fuel ratio is necessary for optimum catalytic converter operation as well as good fuel economy and emissions performance. Newer on-board computers also control the torque converter clutch, transmission shift points, and air conditioner operation to increase fuel mileage as well as lower emissions. The computer control system can be divided into three major subsystems: computer, input sensors and output devices
The primary reason for using on-board computers in modern vehicles is to meet fuel economy and emissions regulations. The use of computers allows the ignition, fuel, and emission systems operations to be controlled precisely. The end result is a stoichiometric air-fuel ratio that is as close to 14.7:1 as possible. This air-fuel ratio is necessary for optimum catalytic converter operation as well as good fuel economy and emissions performance. Newer on-board computers also control the torque converter clutch, transmission shift points, and air conditioner operation to increase fuel mileage as well as lower emissions. The computer control system can be divided into three major subsystems: computer, input sensors and output devices
Computers A vehicle's on-board computer is normally referred to as an electronic control unit or ECU. the ecu has many different names. a vehicle's ECU may be referred to by one of the following terms controller microprocessor on-board computer engine control computer(ECC) engine or electronic control module(ECM) powertrain control module(PCm) These names are the most common and depending on the manufacturer and vehicle system [1], other specific names may be used ECUs are usually contained in one casing. Most ECUS are located inside the vehicle's interior away from the heat and vibration of the engine compartment but can be located almost anywhere depending on the vehicle, system and manufacturer
Computers A vehicle's on-board computer is normally referred to as an electronic control unit or ECU. The ECU has many different names. A vehicle's ECU may be referred to by one of the following terms: ·controller ·microprocessor ·on-board computer ·engine control computer (ECC) ·engine or electronic control module (ECM) ·powertrain control module (PCM) These names are the most common and depending on the manufacturer and vehicle system [1], other specific names may be used. ECU's are usually contained in one casing. Most ECU's are located inside the vehicle's interior away from the heat and vibration of the engine compartment, but can be located almost anywhere depending on the vehicle, system, and manufacturer
A few ECUs are made in two parts with the processor located in the passenger compartment and the output part under the hood Whatever their physical locations all ECUs contain two main sections: the central processing unit and the memory section. The memory section has two separate sections of memory--permanent and temporary Central processing Unit The central processing unit(CPU)is the section of the electronic control unit that performs calculations and makes decisions. The CPU is sometimes called the controller. the cpu is constructed using one or more integrated circuits, or ICs. Incoming data from the input sensors must go through the CPU, where the data is processed and adjustments made to the output sensors. The ECU must be replaced if the cpu is defective as it is affixed to the ECUs circuit board
A few ECUs are made in two parts, with the processor located in the passenger compartment and the output part under the hood. Whatever their physical locations, all ECUs contain two main sections: the central processing unit and the memory section. The memory section has two separate sections of memory--permanent and temporary. Central Processing Unit The central processing unit (CPU) is the section of the electronic control unit that performs calculations and makes decisions. The CPU is sometimes called the controller. The CPU is constructed using one or more integrated circuits, or ICs. Incoming data from the input sensors must go through the CPU, where the data is processed and adjustments made to the output sensors. The ECU must be replaced if the CPU is defective, as it is affixed to the ECU's circuit board