Toyota Camry SiC is a hybrid filled with carborundum

February 27, 2015 at 7:49 pm

Since February, on the streets of Toyota City will begin the test of a prototype based on the unusual hybrid Toyota Camry. The power unit of the car is almost serial – electric motor, engine 2.5, traction battery. Here are just a non-standard electronics – it is not built on silicon, and silicon carbide. Joint development companies Toyota, Denso Corporation and Toyota Central R & D Labs in the future will allow hybrid and electric vehicles become more economical.

Toyota Camry SiC picture

Toyota Camry SiC pics

Experiments with conventional power electronics and silicon carbide in the world are not the first year and affect multiple industries. Theoretically advantages over silicon circuits in a semiconductor with formula SiC many: its parameters are more stable at sharp fluctuations in temperature, it has a higher thermal conductivity (this improves heat dissipation), less resistance, which means lower energy loss during operation. More such schemes are resistant to radiation and are able to operate smoothly even when overheated to 600 degrees Celsius, is simply unthinkable for silicon electronics. Toyota is focusing on automotive applications of this research: to create a unit of power electronics with diodes and transistors, silicon carbide, and put it under the hood Camry.

Toyota Camry SiC pics

Toyota Camry SiC image

In electric cars or hybrids losses in the power electronics unit accounted for 20% of total energy consumption, therefore increasing the efficiency of the device, according to engineers, can improve the efficiency of the entire system by 5-10%. Theoretically, this means running a ten percent increase in the same battery. And how it will work in reality – tests show on ordinary roads. During the tests, the Japanese carefully write down all the parameters of travel, the voltages and currents in the transducer block and to compare these data with serial hybrid in the same conditions. The tests will last about a year. And then we can hope for the next step – the organization of serial production of the device.

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