Thursday 5 march 2009 4 05 /03 /Mar /2009 07:16

With the decline in the prices of notebook computers, many of my friends must have been a temptation to do on the notebook. We have to buy notebooks, often focusing only on price, weight, look and configuration, to little concerned about the use of notebook laptop battery, sony battery, sony pcga-bp2nx battery. In fact, this notebook for mobile tools, the overall level of performance and battery inseparable from the merits, the importance of the battery are also no less CPU, motherboard, hard disk, and so on.


 


Next, on the compact with you to understand the notebook battery, you may be able to buy notebook computers to some proposals. Materials and production We start talking about  sony vgp-bps5 battery materials currently used in notebook computer batteries in three main categories: 1. Nickel-chromium batteries, 2. Ni-MH battery, 3. Lithium batteries; they generally expressed as: Ni-Cd NI-CD, Ni-MH NI-MH, Li-electric LI. With regard to the difference between the three  toshiba battery, toshiba pa3383u-1brs, I present to a friend's laptop sales was asked whether he had also done work in mobile phone sales, we have to listen to how he was talking about. "We live with the notebook batteries commonly used in cell phones have many similarities, the first notebook cell phones and are using the NI-CD nickel-cadmium batteries, as battery technology was not advanced nickel-cadmium batteries have a lot of headaches Shortcomings, such as: bulky, heavy weight, small volume, short life expectancy, such as memory effect (for nothing). Current nickel-cadmium batteries have been eliminated, and the notebook is also the break Ni-Cd, it is not much mention of the need.


 


The  toshiba pa3384u-1brs battery are lithium-LI electric NI-MH and Ni-MH both of which have the power lithium-small size, light weight, high capacity, low memory effect, charging a short time, etc., the user popular favorite. " "I like lithium electricity, because it does not remember, do not charge when the first discharge, easy! People know that the earth!" "People do not believe that lithium battery memory effect is wrong, this is misleading and irresponsible business. Lithium batteries have the same memory effect, it is only the memory effect is relatively low, and it is not clear. In addition, lithium batteries Two hours, is a lithium power, and the other is the lithium-ion batteries. " "What is the difference, how can one tell?" "Lithium power, there will be a long time ago, when it is not safe to use, often in charge when burning, burst, perhaps because lithium is too active elements because. Then there is the improved version of the lithium-ion toshiba pa3191u-1brs batterysony vgp-bps3 battery. Adding the element lithium can inhibit the active ingredients, so that the lithium power to achieve real security, efficiency, convenience, and Li-old has been out of power also. As to how to distinguish them from the battery on the logo will be able to identify, lithium power for LI, Lithium-ion batteries for the LI-ION.

By Bshyes
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Friday 27 february 2009 5 27 /02 /Feb /2009 02:35

Figure 8 for the fuel cell engine output current and output power curve. As can be seen from Figure 8, fuel cell engine output power with increasing output current increase. Fuel cell engine in the regular job of 20 ~ 70 kW range, current range are 50 ~ 200 A, so the dell battery, dell d5318 battery, gd761 fuel cell engine power can meet the required vehicle dynamic performance.

Reference applies to the four-city bus cycle condition in the RLS road simulation software, a custom operating mode cycle test results as shown in Figure 9. As can be seen from Figure 9, in the 0 ~ 33s time, the vehicle to accelerate from zero to 25 km / h, drive power increases, the super capacitor discharge, SOC values from 346970-001, compaq 319411-001, 367759-001, 338794-001 0.7 down to 0.42, when the super capacitor as Auxiliary energy, improve the vehicle’s acceleration performance; 55 ~ 80s in time, the speed from 40km / h to slow down to zero, the vehicle drive power reduced, the braking energy back to the super capacitor to charge, SOC values from 0.3 rose to 0.65. SOC the charge, discharge characteristics and working conditions of Canada and deceleration to fit together well.

4 Concluding remarks

Studied the super-capacitor and fuel cell hybrid engine system test platform to build and carry out the test. The results showed hp battery, hp hstnn-lb31 battery, hp dv6000 battery that the road simulation software RLS can effectively simulate actual road conditions; super capacitor to make up for the fuel cell engine deficiencies; CAN bus technology acquisition equipment improve the reliability of the system and the system easy to maintain and expand.

By Bshyes
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Friday 27 february 2009 5 27 /02 /Feb /2009 02:32

3 Test System

Can be verified through tests and improve the fuel cell engine of the current, voltage and power output characteristics, in order to provide the basis for parameter matching vehicle. Depending on the target fuel cell vehicle design apple battery, apple a1078, a1079 battery requirements, after the relevant calculation, the engine power of 60 kW. Taking into account the back-up power and automotive ancillary equipment power consumption, the final choice of rated power to 70kW, the maximum power for 85 kW fuel cell engine as a test object, test results are as follows.

Fuel cell engine power efficiency as shown in Figure 5. Can be seen from Figure 5, fuel cell engines in the low load (15 ~ 70 kW) when a1185m8403 more efficient, as many fuel cell vehicles running on the power of the speed range, so the fuel cell engine vehicles can meet the requirements.

  

Figure 6 for the fuel cell engine output voltage and current curves. As can be seen from Figure 6, when the external load current required increases, the output voltage will be reduced, especially in the initial phase voltage has dropped dell battery, dell 6400 battery, dell 6000 battery drastically. The characteristics of the fuel cell vehicle power system dynamic characteristics is very disadvantageous and must therefore be equipped with auxiliary energy source.

    Figure 7 for the fuel cell engine output voltage and output power curve. As can be seen from Figure 7, when the external demand 6y270 battery, dell c1295 battery for power increases, especially in low-load stage, the voltage drops rapidly. Pilot test, the fuel cell engine rated power is 70 kW, operating voltage at this time for 350 V, operating current is 200A, the maximum power achieved 84kW, so fuel cell vehicles can meet the power demand.

By Bshyes
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Tuesday 24 february 2009 2 24 /02 /Feb /2009 07:45

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