Car charger troubleshooting methods and Suggestions

There are many car owners in recent see BBS do not reflect filling into electricity and car charger fault posts, I estimate of manufacturers have taken steps to improve, this time I also to gather together a jollification, mention some of its views, I now is in a mass production of electronic products manufacturer is very seriously, the least, the following Suggestions may be the same with other cyclists, I made some elaboration) :

1, improve the car charger surrounding heat dissipation problem. Status is a car charger and the battery emits heat, are concentrated in a relatively narrow space, although the air flow, but not export, only will be more and more high temperature, concrete temperature has been measured with the owner, I will not repeat the test, if hot last time charging everyone feel once knew. Electric cars, for example, if you put the charger in a bag, charger damage failure rate is very high), experience has taught me, like this temperature will accelerate the car charger components of aging, so you have to solve the problem of heat dissipation. The following solution for reference: 1) guide duct ways will on-board charger assembly fan blow out hot air from the outlet charger side should call pressure (outlet) export, the heat comes out of the car; (2) install a suction fan outlet where convulsions; (3) in blocking the charger on the piece of decorative many holes, like hole hole plate, can let the heat in the tail in the larger space cooling (I found that sometimes the charger as overheating automatic protection, when the power is removed the piece of decorating plate, and then open the tail box locked up, unexpectedly can charge until full charge, middle power no longer).

2, increase the power components of the power allowance. The same circuit, appropriate increase calorific value big power components of the power allowance, will reduce a lot of calorific value (there is no doubt this is true), although would increase the cost of some, but not much, compared to the manufacturer's reputation and thousands of dollars for the charger can not plan.

3, redesigning the circuit structure and the charger heat dissipation structure: (1) the higher efficiency of switch power supply circuit, can reduce the calorific value, improve the efficiency; (2) can automatically adjust the charging power real-time, although now the charger also have the function of adjusting the charging power, but I felt only in the boot when the adjustment, not according to the variation of input voltage and temperature and automatically adjust the charging power, do not have real time; In addition power charger despite overheating automatic protection function, but it can let a person think the charger is broken, or PWM intelligent power for good. (3) charge/frequent power outages, this

It is easy to cause damage to other circuits: such as batteries, battery management, especially the harm of more than 500 v high voltage power is stronger. (4) strengthen the inside of the radiator and exposed to the car, need to open the radiator and hole on the car sheet metal stretched out, and at the same time do waterproof processing, but do this quantity is big); (5) the water (on the same principle with water cooling system to the PC host) or semiconductor refrigeration heat indirectly exported outside.

I analysis summary from electrical Angle, when the car off the electricity, you can take the following methods to check out first:

1, change the socket, strip look;

2, insert the plug, including hard good docking with the car of the plug, and check the plug and socket have any damage, rust, stains and other undesirable phenomena, related joint have poor contact phenomenon;

3, in a place: get a bit further place try to charge (e.g., from home to the unit or other different parts is a transformer);

4, respectively, with hanging charger and portable box or borrow other qin car rechargeable box to see;

5, tested the input power supply voltage is stable, the voltage is in accordance with the requirements: first of all test points should be close to three plugs/portable rechargeable box wall charger into the terminal there, in addition to the charger official connection before testing is accurate, method is to use a multimeter (suggest using pointer multimeter, can be observed more intuitive) by fluctuation of voltage of ac 250 V to 500 V block measure the supply voltage is stable without apparent fluctuation phenomenon, and voltage within 220 + 20 V (I've tested in this range can be normal work, beyond the no) has been measured. If not sure charger has officially connection, you can use other power close to the load (such as induction cooker) start instead of the charger to observe; If you don't have a multimeter, can replace with an incandescent lamp, observe the brightness of the incandescent lamp should be no change. Additional charge in the same power supply circuit should be no other power and current fluctuation is big, easy to generate harmonic electrical appliances, such as electric welding machine.

6, conditional word, can use high precision voltage regulator to exclude the power failure caused by unstable, voltage regulator power at about 5 kw, want that kind of the structure of the autotransformer, don't that kind of relay switching type. The portable rechargeable box three/wall charger plug terminal access to the output of the regulated power supply, in the middle of the attachment should be short shoulds not be long. But stabilizer can only plays a role of zener voltage fluctuate within a certain scope, for line contact bad break phenomenon is sometimes doesn't work.

7, other generally refer to the manual charging ruled out fault diagnosis content.

The above methods can't, I think you can visit the 4 s shop, maybe you win! If suspect malfunction with the car charger assembly, best first phone ask 4 s shops have inventory, and before you go to phone booking, lest make a trip in vain.

Last month I drive go to nanning 4 s shops check, 4 s shop teacher checked the power battery with a computer, each battery module voltage basic normal, lithium iron phosphate battery monomer voltage range can be baidu to learn), then immediately conclude that car charger is defective, the whole process is about ten minutes, don't even open the trunk to check the car charger, this let me some not trust, then with the 4 s inn master said that can you check again carefully, even after all it is not easy to come to thoroughly check, the 4 s shop teacher said 99% is car charger is damaged, need not checked (ha ha, it seems is repaired very much, has the experience). 4 s shops also told me that the warehouse has no car charger inventory, before a few stocks already all used, need to factory orders, the order cycle for more than a week, and only Wednesday to order (what a wonderful work policy), because the arrival of the time, you only to drive back and then changed.

In unable to charge this time, due to open in the city often, it's hot and must open air conditioning, electricity has been hovering around 5% (minimum can drop to 3% ~ 3%), driving comfort is at a discount greatly, really don't know whether the latest upgrade to improve these weaknesses?

A few days before the second to nanning 4 s shops, to replace the car charger assembly, charging for several times, now you need to be normal. But after you come back for the first time there have been dozens of minutes automatic charging without electricity for a time interval (longer), estimation is overheating automatic protection, should belong to the normal phenomenon, not like the previous repeatedly on/off. These days the weather is cool, didn't find the power phenomenon, now continue to observe.

As when I went to check the charger, guangxi qin about 30-40 vehicles (Q group of statistics, not sure), damage to the car charger assembly has been more than a seven, it does have some high failure rate. Failure in June and July, when our indoor temperature up to 33 to 35 degrees south, outdoor is higher, so I think the temperature is one of the charger to kill @ hand, hope factory take measures to solve it as soon as possible.

In the process of replacement charger, manufacturer and 4 s these improvements measures or let us these owners satisfied:

1, take the initiative to recharge us these old owner free replacement with mouth open the manual switch (including decorating plate). After charging, sometimes locked the door from the tail box out of the portable rechargeable box to remember didn't press the charging switch, and have to charge the mouth switch to open the front door open, now in the tail box operation directly, and solved the rechargeable electric control sometimes play not to open.

2, change the bigger power charger. After no matter how I improve, with a portable rechargeable box of charging the power can reach 1.5 KW, can now reach 2 KW (wall charger not to also don't know how to achieve power), the charging time, satisfy my commute, eps can be pure electric drive in the city.

3, brush system, although not the latest, but feel better. Come back after the third genius, upgrade notice only needs to be a National Day Mid-Autumn festival expressway toll free during the period of time to update the latest program 4 s shop again.

4, 4 s shop painting level is good, I think the blue car is difficult to find the paint spray paint, didn't expect the 4 s store the next day I scratched spray to almost the same with the original factory.