heise

car55

Samedi 13 novembre 2010 à 9:50

 
 
Diesel Particulate filters (DPF) or 'traps' do just that, they catch bits of soot in the exhaust.
 
As with any filter (think of the bag in your vacuum cleaner) they have to be emptied regularly to maintain performance. For a DPF this process is called 'regeneration' – the accumulated soot is burnt off at high temperature to leave only a tiny ash residue. Regeneration may be either passive or active.
 
Passive regeneration takes place automatically on motorway-type runs when the exhaust temperature is high. Many cars don't get this sort of use though so manufacturers have to design-in 'active' regeneration where the engine management computer (ECU) takes control of the process.
 
When the soot loading in the filter reaches a set limit (about 45%) the ECU can make small adjustments to the fuel injection timing to increase the exhaust temperature and initiate regeneration. If the journey's a bit stop/start the regeneration may not complete and the Warning Lights will illuminate to show that the DPF is partially blocked.
 
It should be possible to start a complete regeneration and clear the warning light by driving for 10 minutes or so at speeds greater than 40mph.

Samedi 13 novembre 2010 à 9:40

.HID Bulb status and development trend
1) The status of the current market conditions are: from harvesting the fruits of autumn is not far off, but also a lot of things to do, we need to co-operation, common development.
        Through part of the author and domestic foreign trade companies and distributors HID know, as well as their clients, as well as analysis of sales of HID BALLAST for the market as a whole, the spring has passed, in the hot summer, the U.S. because of competition are not too comfortable too intense, in fact, from now harvest the fruits of autumn is not far off the!
        Who insist to the last, who will harvest more! Winner-take-all, who left for the king!
        The strength of enterprises, enterprise management, enterprise marketing and product positioning, corporate marketing, business-to-product quality and service attitude, be able to decide who will insist to the end and win.
        2)Development trends
        Xenon HID lamp current profit margins of the profits from the past to the current low profit margins, profit margins in such circumstances, to assume more than the after-sales service and after-sales service in products during the period, after-sales service will a significant portion of the profits go, coupled with more and more specialized products, product line, more and more customers becoming more demanding, and some of the operators already have quit the market, this is the inevitable result of market development.
        HID is not good to do, and do not have to do the good; as long as the product sold, regardless of the selling can go; now do not have much money, but also to do more after-sales service; This is the mentality of impetuous, quick of mind .
        HID United or strong industry mergers have begun to emerge.
        HID industry so many excellent enterprises and brands are the long-term business thinking they will win a magic weapon.
        HID because of rapidly declining prices, many owners feel more and more products, better value for money, demand growth was blowout.
        HID abroad in the fast-growing demand, shipments from the current situation, foreign guests ordering 3 each container, or even more containers are normal Order, and showing a more major clients, more focused foreign also same cards!
        HID China is also fast-growing demand, industry associations in the country to actively cooperate with the relevant policies, and guide the healthy development of the industry. As more and more new universal lens lamps, aftermarket HID conversion does not have the condenser, will be dazzling and so there is no disadvantage. At the same time, the former equipment market, has been an increasing number of new cars equipped with HID lights. Once open the domestic market, HID's really into the demand of the fruit harvest.
        In short, the current market environment, enterprises in the HID to the steady development of industry, cost-effective products, there is good security services, and stable cooperation partner, the comprehensive strength of enterprises are essential to the country regulations and policies is also important to grasp, at the same time differentiated, specific positioning for enterprise survival and development.

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