[introduction]In going 10 years, automobile industry experiences most what revolution depends on software defining car is arisen. In traditional car design, be like,be aimed at the specific function such as dynamical assembly system or information entertainment system, all match subsystem of stock appropriative hardware. To satisfy the requirement that the model upgrades quickly, build modular, agile subsystem through compose (also call ” area ” ) will unite conformity a variety of functions, become more economy is efficient. Contemporary car is designed no longer confine controls unit at special region, turn to support however two to 3 compositive the area control of a variety of functions is unit.

In going 10 years, automobile industry experiences most what revolution depends on software defining car is arisen. In traditional car design, be like,be aimed at the specific function such as dynamical assembly system or information entertainment system, all match subsystem of stock appropriative hardware. To satisfy the requirement that the model upgrades quickly, build modular, agile subsystem through compose (also call ” area ” ) will unite conformity a variety of functions, become more economy is efficient. Contemporary car is designed no longer confine controls unit at special region, turn to support however two to 3 compositive the area control of a variety of functions is unit.

The innovation of framework of this one area, mean traditional frit silk to replace the semiconductor switch that is electronic fuse by the name. Photograph score establishs type fusing fuse, electronic fuse has a variety of advantages. Electronic fuse can be offerred but restoration output, make car framework division can choose to install the position neatly, because they are appearing,breakdown hind need not change. Because need not be contacted often, this shortened effectively arrive from power source laden cable length. In addition, electronic fuse improved fusing time – electric current is characteristic, changeability is smaller, can narrow consequently the cable diameter, making cost that reduce weight and cuts wiring harness. For power source management the system offers add function to be able to promote precaution to defend the usefulness that diagnoses with breakdown, conduce to optimize electronic system power comsumption, thereby the travel course of development that bigger limit ground lengthens electric car.

Graph 1 revealed fusing fuse to electronic fuse evolve.

Graph the fusing in 1 area controller and distribution box fuse replaces a product

The article will discuss the transition that can configure electronic fuse how to accelerate implementation to define car framework to software.

Use electron fuse undertakes designing

Interconnection car must last supervisory system state, this was covered from advanced sensor the function till the fundamental condition of fuse component. In addition, when area framework design still asks in the basis change of power supply load adjusts fuse to configure, can show the flexibility that gives height. Through using serial peripheral interface (the communication interface such as SPI) , electronic fuse (like TPS2HCS10-Q1) can configure switch according to laden demand trends, take laden diagnostic information to assist through reading decision-making, solved these two difficult problem effectively thereby. Although added add function, but overall system cost amount of lower however, component is fewer also, because of electronic fuse need not exterior and passive parts of an apparatus can be configured protect and diagnose a function.

SPI interface offers a variety of switch condition and laden breakdown continually to diagnose information, reduced small controller greatly (the expense of MCU) . Inside parts of an apparatus compositive modulus converter (ADC) , can read access word to diagnose data in the round through SPI interface, the ADC that because this need not be depended on again,is based on MCU will be read alone take electric current and voltage output. Graph 2 if where,revealed electronic fuse detect below the circumstance that does not have exterior component output voltage and batteries short circuit or breakdown of open circuit load.

Graph 2 need not exterior component can realize output voltage and batteries short circuit or breakdown of open circuit load detect, and the expense that reduced MCU greatly

In the development process that defines car transition to software, one big challenge depends on how reducing the development flow of software and firmware, ensure agree between the system in coordination. In the light of all sorts of model test and verify many systems can raise periodic time and cost. The advantage of electronic fuse depends on, it is handling load of different electric current (from low supreme) while, use unified interface to come process designing and read take news, apply to those who have each different to output load performance a variety of model version. Through digital interface implementation software configuration, control is mixed diagnostic function, can decrease to be inputted to MCU significantly / output (the demand that I/O) cites a base, reduced additional I/O to expand further implement cost reduced printed circuit board (the area of PCB) .

So, the electronic fuse that why chooses software to you can be configured particularly appropriate?

• Can configure time, voltaic curve. Unlike limitation of even electric current, embedded the time of fuse, the curve meets voltaic character according to load current when grow to be judged with intensity whether or when to shut switch. This means electronic fuse to be able to bear inside short time tall load current (for example electric machinery surge or stall electric current) , but can cut off automatically below overload circumstance, in order to protect wiring of wiring harness, PCB and connector. In addition, pass SPI configuration, require set only nominal electric current and close energy to spark threshold value two parameter, can agile process designing a variety of fuse character curves. Graph 3 showed the protective program give a demonstration inside limits of whole electric current.

Graph 3 but process designing fuse is characteristic

• Electric current of small static state. A lot of electrons control unit (although ECU) also holds electrify position when car jockeys. For the electronic fuse of these ECU power supply need uses up low-down job electric current, in order to prevent batteries n fast and extinct, ensure needs load can continue to hold mobile position. Although voltaic demand is reduced, protective function still holds activation position, ensure the system avoids the effect that suffers short circuit incident. More important is, electronic fuse is passed detect laden circumstance is timely in the switch between regular job and mode of low power comsumption, come true to be run independently thereby, and the expenditure that won’t increase MCU. Range of products of fuse of electron of heart state apparatus is had exceed electric current of small static state, can satisfy afore-mentioned all requirements.

• Can configure mode of drive of the load that allow a gender. A lot of area load are the load that allow a gender substantially; Accordingly, use at for its the switch of power supply must undertake capacitance charges can efficiently. Traditional fuse and switch do not have capacitance to charge function, and electronic fuse offerred two kinds of mode: One kind is to be aimed at charge the load current in the process is bigger of the circumstance constant electric current charges mode; Another kind is to be aimed at the load that allow a gender to exceed big but the mode of voltage of fixed transient state that charging current surpasses low case. Plant in either below the circumstance, electronic fuse can charge in programmable in period of time, surge electric current limitation is in an inferior value. The one large dominant position of electronic fuse depends on, the charging current that makes parts of an apparatus can differ through adjusting or voltage threshold value, drive is of all kinds the load allowing a gender of size. When the load current wear out condition in the character that considers capacitance itself when need and parallel circuits, parts of an apparatus configuration charges for capacitance mode is ideal anthology.

Electronic fuse is replacing traditional semiconductor switch quickly

The range of products of switch of intelligent high side of heart state apparatus deserves to have transistor of effect of compositive type field, have wide guide electrify block limits, supportable a variety of load current, conduce to the difficult problem that in solving area framework to design, encounters. Limitation of electric current of mode of the SPI communication function that TPS2HCS10-Q1 electron fuse has by right of its, low power comsumption, I2T and intelligent capacitance charge wait for character, solved the difficult problem of development and technical level effectively. These switch realized more advanced distribution way not only, still be carry out implement drive application was offerred protect and diagnose a function.

Epilogue

The fuse of electron of heart state apparatus that includes TPS2HCS10-Q1 inside satisfied the systematic requirement of intelligent distribution and ECU of software definition section already, what realized cost, space and time in development phase again is economic. Future, become with each passing day as car fuse more intelligence and safety, traditional fuse probably will need not undertake changing again.

 

Avoid duty statement: The article is reprint an article, reprint this article purpose to depend on passing more information, the person that copyright puts in original work ‘s charge is all. If involve work copyright issue,article place uses video, picture, written language, contact please small make up undertake handling.

Recommend read:

Exceed the knot MOS application on complete bridge circuit

Collect Mu is about to join exhibit PCIM Europe 2024: The ode can grow, promote innovation

Optimize a car to enter a system without the key, how to use blue tooth low power comsumption and LIN technology to come true quickly?

｜ of craft of semiconductor back end the 7th: Brilliant round class encloses craft

How does sheet of have the aid of undertake corresponding upgrading to aether net?