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Technical

Why do EVs not have standardised charging connectors?

Why do EVs not have standardised charging connectors?

Electric Vehicles, Technical
In his latest article, HEVRA's Peter Melville discusses the different types of electric vehicle charging plugs If you're not familiar with electric vehicle charging, it may surprise you to hear there are four different charging connectors in common use in the UK, and this is excluding some of the early models such as the Tesla Roadster and some lead-acid cars like the G-Wiz. So why all of the different connectors? Firstly, most cars have two different connectors, one for AC, one for DC. And before you groan that there's no standardisation here- there is a good reason for it. All batteries are DC, and mains electricity is AC, so to charge your car up from the mains, there needs to be some AC-DC conversion at some point. Vehicle manufacturers have quite sensibly decided to inco...
What is the difference between a hybrid, an EV, a PHEV and an EREV?

What is the difference between a hybrid, an EV, a PHEV and an EREV?

Electric Vehicles, Hybrid Vehicles, Technical
HEVRA's Peter Melville discusses electric technology in today's vehicles, and the major differences The term hybrid and electric vehicles covers a broad range of technologies, some which take petrol or diesel, some that plug-in, and some that do both. So what's what? We'll start with the non-plug in hybrids, such as the Toyota Prius. These cars run exclusively on petrol (or diesel in some cases), but one or more motor-generators allow energy usually wasted, such as during idling or braking, to be recovered and used later to help acceleration. Many hybrids are capable of driving completely on electric power for very short distances at low speeds. If we take this concept and add a larger battery and an on-board charger, we can add some electricity (which is cheaper and cleaner t...
Fault finding in glow plugs

Fault finding in glow plugs

Diesel, Ignition, Technical
A damaged or broken Glow Plug could spell disaster for a driver, causing a misfiring engine or at worst, failure to start. In turn it is vital for workshops to be prepared to capitalise on replacement demands. To make life easier for workshops and to keep customers on the road, DENSO has produced a diagnostic guide to help spot and fix common glow plug faults. Enlarged probe tip Causes: This is most often caused by excessive voltage being delivered through the glow plug, such as putting a 12 V Glow Plug in a 24 Voltage system. It could also be a result of a failure of alternators and regulators. Storing a glow plug in a damp environment can also lead to a probe tip becoming enlarged. Solution: Ensure you check the Glow Plug voltage is correct. Also look over the charging syste...
Glen Norris: No fault codes, now what?

Glen Norris: No fault codes, now what?

Technical
The vehicle in this article is a Citroen DS3 1.6 Diesel and after a brief chat with the customer regarding driving style,service history and journey types we then discussed the symptoms of excessive black smoke when the revs were increased . Driving the vehicle into the workshop confirmed the symptoms the customer described , thick black clouds of smoke were clearly visible. I carried out some visual checks in the engine bay , oil level was perfect and also coolant level was as expected. Next step was to interrogate the ECU for fault codes , there were none . If you have read my previous posts on this blog you will know I am a great believer in process , which often involves stepping away from the vehicle for 10 minutes and building a test plan so I am not aimlessly testing compon
We need you!

We need you!

Technical
Auto Repair Focus is looking for case studies to feature in our technical section. Have you had a difficult fix, or an 'interesting' job come through your workshop? Perhaps you had to think outside the box to get that fix, or went above and beyond in the efforts of customer satisfaction. Whatever the case, we want to know. All we need is around 500 words, and don't worry if you are concerned about writing good copy - we can take care of that side (although most writing we've seen over the years in the media has been good straight from the off!) - simply send you piece, together with any images, to phil@autorepairfocus.com, together with your name, business name and location, and any contact details. We will publish all case studies we receive, and include your details at the b...