Практика Shadowing: Step-by-step Demonstration: High-Voltage Battery Repair - Изучайте разговорный английский по видео
Создание урока...
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We're here at Precision Auto Service in Langley, BC, where a customer has brought in a 2016 Fiat 500E for repair.
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The car was towed all the way from Vernon, BC, over 400 kilometers away from the shop.
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The customer reported that the car would not go into ready mode.
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The dealership had told the customer
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that the entire battery pack would have to be replaced at a cost of around $20 ,000, and that was if a replacement could be found.
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Precision Auto's diagnosis revealed a fault within the battery pack control module.
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Replacement BPCMs are not readily available either, but Precision Auto is well connected and was able to source one from a company in Europe.
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After the replacement module arrived, it was time to perform the repair.
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The first step is to disconnect the 12 volt battery.
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Yes, most EVs have a 12 volt battery to run accessories like lights, wipers and infotainment systems.
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Next, the high voltage service plug is removed.
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On this model it is located under the rear seat.
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The service plug is like a giant fuse, this one is 350 amps.
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Once removed, the high voltage is isolated to the inside of the battery pack, making it safe to work on the vehicle.
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The battery pack is removed from under the car, so the car is lifted with a hoist.
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On the Fiat, the battery pack extends from just rear of the front wheels almost to the back of the car.
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The rearward part is where the fuel tank would be on a gas -powered car.
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Several metal protective covers are removed.
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This exposes the main high voltage cables, which are colored orange, and the cooling system hoses.
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This battery is liquid cooled.
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Even though the high voltage battery has been isolated, the technician puts on rubber electrical safety gloves before proceeding with the next steps.
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To ensure there are no pinholes, the gloves are tested before each use.
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This is done by rolling up the open ends of the gloves, pressurizing the air inside.
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Then the gloves are held to the cheek to check for air leaks.
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Once the gloves have passed the test, a pair of work over gloves are worn over them.
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Now the technician is ready to disconnect the electrical cables from the battery pack, starting with the main line and then the secondary line.
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He places a catchment vessel on a scissor lift table directly beneath the coolant hoses,
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clamps the hoses, and then loosens the clamps where the hoses connect to the fittings on the battery pack housing.
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The coolant drains into the catchment vessel.
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to prevent further spillage while the battery pack is being removed he places caps on the coolant fittings
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because the battery pack goes over the top of the rear axle the complete rear axle and suspension is removed.
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When the battery pack is removed, it is going to drastically change the weight distribution of the vehicle,
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so the technician secures the front and rear of the vehicle with supports beforehand.
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The technician places the scissor lift table beneath the battery and raises it until it contacts the bottom of the battery case.
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Now the main bolts can be removed
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With all the bolts removed, the table and battery pack are lowered together.
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This vehicle had a considerable amount of mud caked on its underside, so the battery pack cover must be cleaned before it can be opened.
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No debris should be allowed to contaminate the interior of the battery case.
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The technician uses a shop vac and compressed air to remove loose mud and dust.
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Several dozen bolts hold the top and bottom halves of the battery pack case together.
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These are removed.
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The top half of the case can now be lifted off, exposing the components of the battery
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The technician conducts some tests, verifying voltage readings to ensure there are no other problems.
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Satisfied with the results, he disconnects the cables from the connectors on the BPC -M and removes the module.
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He then installs the replacement module.
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The battery pack is now ready to be reinstalled in the vehicle.
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When an electric vehicle's high voltage battery malfunctions, it does not always mean that the entire battery pack must be replaced.
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The most common reason a complete replacement will be recommended is
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because currently there are very few businesses that possess the resources necessary to perform battery pack diagnosis and repair.
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It is much easier to simply swap out the entire battery pack
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that said the price of a replacement battery pack is usually prohibitive
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and in many cases availability is scarce this will change over
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time as with any new consumer product prices will come down as demand
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and production increase this will be true not only for complete battery packs
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but also for the internal components precision auto service is presently one of very few repair facilities
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that have invested in the tools, equipment and training necessary to diagnose and repair high voltage batteries and other EV components.
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This too will change as shops start to see a larger portion of their customer base driving electric vehicles.
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Лексика и советы по произношению к этому уроку
В этом видео 57 предложений и 852 слов для шедоуинга. Речь длится 8:46. Говорящий говорит медленно, около 97 слов в минуту, поэтому есть время повторить каждый звук. Только 77% слов входят в 3000 самых частых слов английского языка, поэтому лексика сложная.
Ключевая лексика этого видео
15 слов из видео, которые стоит выучить, с произношением и значением:
| Слово | Произношение | Значение |
|---|---|---|
| voltage существительное | /ˈvəʊltɪd͡ʒ/ | напряже́ние, вольта́ж |
| replacement существительное | /ɹɪˈpleɪsmənt/ | заме́на, замеще́ние |
| glove существительное | /ɡlʌv/ | перча́тка, рукави́ца |
| technician существительное | /tɛkˈnɪʃən/ | те́хник |
| repair глагол | /ˈɹiːpɛɚ/ | ремонти́ровать, отремонти́ровать |
| precision существительное | /pɹɪˈsɪʒ.ən/ | то́чность |
| module существительное | /ˈmɑd͡ʒul/ | мо́дуль |
| hose существительное | /hoʊz/ | шланг |
| component существительное | /kəmˈpoʊ.nənt/ | компоне́нт, составна́я часть |
| bolt существительное | /boʊlt/ | болт, винт |
| automobile существительное | /ˈɔː.tə.məˌbil/ | автомоби́ль, автомаши́на |
| connect глагол | /kəˈnɛkt/ | свя́зывать, связа́ть |
| vessel существительное | /ˈvɛsəl/ | су́дно, кора́бль |
| beneath | /bɪˈniːθ/ | под |
| diagnosis существительное | /daɪəɡˈnəʊsɪs/ | диа́гноз, диагно́стика |
Фразовые глаголы, которые вы услышите
| Слово | Значение |
|---|---|
| come down глагол | спуска́ться, спусти́ться |
| go over глагол | хорошо́ принима́ться |
| roll up глагол | свора́чивать, свёртывать |
Грамматика в этом видео
Конструкции, которые говорящий использует чаще всего, с точными словами из видео:
| Конструкция | В видео |
|---|---|
| Пассивный залог be + причастие прошедшего времени — важно, что происходит, а не кто это делает | was towed · be replaced · is removed |
| Present Perfect have/has + причастие прошедшего времени — прошлое действие, важное сейчас | has brought · has been isolated · have passed |
Произношение, на которое стоит обратить внимание
- Звуки «sh» и «zh»: technician /tɛkˈnɪʃən/, precision /pɹɪˈsɪʒ.ən/, suspension /səˈspɛnʃən/, dealership /ˈdiːləʃɪp/, malfunction /ˌmælˈfʌŋk.ʃən/
- Длинные слова — следите за ударением: automobile /ˈɔː.tə.məˌbil/, electrical /ɪˈlɛktɹɪkəl/, considerable /kənˈsɪdəɹəbl̩/, availability /əˌveɪ.ləˈbɪl.ɪ.ti/, accessory /əkˈsɛs.(ə.)ɹi/
Как заниматься с этим видео
- Прослушайте всё видео один раз молча и выпишите незнакомые слова.
- Повторяйте предложение за предложением на обычной скорости, пока ваш ритм не совпадёт с ритмом говорящего.
- Запишите себя и сравните с оригиналом, обращая внимание на такие слова, как voltage, replacement, glove.
Что такое техника Shadowing?
Shadowing — это научно обоснованная техника изучения языка, изначально разработанная для подготовки профессиональных переводчиков и популяризированная полиглотом доктором Александром Аргуэльесом. Метод прост, но эффективен: вы слушаете аудио на английском от носителей языка и немедленно повторяете вслух — как тень, следующая за говорящим с задержкой в 1–2 секунды. В отличие от пассивного прослушивания или грамматических упражнений, Shadowing заставляет мозг и мышцы рта одновременно обрабатывать и воспроизводить реальные речевые паттерны. Исследования показывают, что это значительно улучшает точность произношения, интонацию, ритм, связную речь, понимание на слух и беглость речи — что делает его одним из самых эффективных методов для подготовки к IELTS Speaking и реального общения на английском.