शैडोइंग अभ्यास: Step-by-step Demonstration: High-Voltage Battery Repair - वीडियो के साथ अंग्रेजी बोलना सीखें
अभ्यास मोड चुनें
हर मोड पूरी स्क्रीन का अभ्यास कक्ष खोलता है।
57 वाक्य
यदि वाक्य बहुत छोटे या लंबे हों, तो समायोजित करने के लिए Edit पर क्लिक करें।
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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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इस पाठ की शब्दावली और बोलने के सुझाव
इस वीडियो में शैडोइंग के लिए 57 वाक्य और 852 शब्द हैं। बोला गया हिस्सा 8:46 लंबा है। वक्ता धीरे बोलता है, लगभग 97 शब्द प्रति मिनट, इसलिए हर ध्वनि की नकल करने का समय मिलता है। केवल 77% शब्द अंग्रेज़ी के 3,000 सबसे आम शब्दों में से हैं, इसलिए शब्दावली कठिन है।
इस वीडियो की मुख्य शब्दावली
वीडियो के 15 सीखने लायक शब्द, उच्चारण और अर्थ के साथ:
| शब्द | उच्चारण | अर्थ |
|---|---|---|
| voltage संज्ञा | /ˈvəʊltɪd͡ʒ/ | विभवांतर, वोल्टता |
| glove संज्ञा | /ɡlʌv/ | दस्ताना |
| technician संज्ञा | /tɛkˈnɪʃən/ | तकनीशियन, यंत्रविद् |
| module संज्ञा | /ˈmɑd͡ʒul/ | मॉड्यूल |
| hose संज्ञा | /hoʊz/ | नली |
| bolt संज्ञा | /boʊlt/ | बोल्ट, पेंच |
| automobile संज्ञा | /ˈɔː.tə.məˌbil/ | मोटरवाहन, गाड़ी |
| vessel संज्ञा | /ˈvɛsəl/ | पोत |
| diagnosis संज्ञा | /daɪəɡˈnəʊsɪs/ | निदान |
| expose क्रिया | /ɪkˈspoʊz/ | खोलना, उघाड़ना |
| dust संज्ञा | /dʌst/ | धूल, धूलि |
| liquid संज्ञा | /ˈlɪk.wɪd/ | द्रव, तरल |
| resource संज्ञा | /ɹɪˈzɔːs/ | संसाधन |
| arrive क्रिया | /əˈɹaɪv/ | पहुँचना, आना |
| suspension संज्ञा | /səˈspɛnʃən/ | स्थगन |
इस वीडियो का व्याकरण
वक्ता जिन संरचनाओं का सबसे अधिक प्रयोग करता है, वीडियो के असली शब्दों के साथ:
| संरचना | वीडियो में |
|---|---|
| Passive voice be + past participle — ज़ोर इस पर कि क्या होता है, न कि कौन करता है | was towed · be replaced · is removed |
| Present perfect have/has + past participle — बीता हुआ काम जिसका असर अभी भी है | has brought · has been isolated · have passed |
ध्यान देने योग्य उच्चारण
- “sh” और “zh” की ध्वनियाँ: technician /tɛkˈnɪʃən/, precision /pɹɪˈsɪʒ.ən/, suspension /səˈspɛnʃən/, dealership /ˈdiːləʃɪp/, malfunction /ˌmælˈfʌŋk.ʃən/
- लंबे शब्द — बलाघात सही रखें: automobile /ˈɔː.tə.məˌbil/, electrical /ɪˈlɛktɹɪkəl/, considerable /kənˈsɪdəɹəbl̩/, availability /əˌveɪ.ləˈbɪl.ɪ.ti/, accessory /əkˈsɛs.(ə.)ɹi/
इस वीडियो से अभ्यास कैसे करें
- पहले बिना बोले पूरा वीडियो एक बार सुनें और जो शब्द नहीं आते उन्हें लिख लें।
- सामान्य गति पर एक-एक वाक्य की शैडोइंग करें और हर वाक्य तब तक दोहराएँ जब तक आपकी लय वक्ता से न मिल जाए।
- अपनी आवाज़ रिकॉर्ड करें और मूल से तुलना करें, ख़ासकर voltage, glove, technician जैसे शब्दों पर ध्यान दें।
शैडोइंग तकनीक क्या है?
शैडोइंग (Shadowing) एक विज्ञान-समर्थित भाषा सीखने की तकनीक है जो मूल रूप से पेशेवर दुभाषिया प्रशिक्षण के लिए विकसित की गई थी। विधि सरल लेकिन शक्तिशाली है: आप मूल अंग्रेज़ी ऑडियो सुनते हैं और तुरंत इसे ज़ोर से दोहराते हैं — जैसे वक्ता की छाया 1-2 सेकंड की देरी से। शोध से पता चलता है कि यह उच्चारण सटीकता, स्वर, लय, जुड़ी हुई ध्वनियाँ, सुनने की समझ और बोलने की प्रवाहशीलता में काफ़ी सुधार करता है।