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Institution

Toyota

CompanySafenwil, Switzerland
About: Toyota is a company organization based out in Safenwil, Switzerland. It is known for research contribution in the topics: Internal combustion engine & Exhaust gas. The organization has 40032 authors who have published 55003 publications receiving 735317 citations. The organization is also known as: Toyota Motor Corporation & Toyota Jidosha KK.


Papers
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Patent
27 Feb 2002
TL;DR: In this paper, a system consisting of a usage status detection means for detecting the usage status of a vehicle, data input means for inputting data relating to the maintenance or management of the vehicle, and insurance premium calculation means for calculating vehicle insurance premiums based on detection results and inputted data.
Abstract: This system comprises a usage status detection means for detecting the usage status of a vehicle, data input means for inputting data relating to the maintenance or management of a vehicle, and insurance premium calculation means for calculating vehicle insurance premiums based on detection results and inputted data.

162 citations

Patent
Nobuhisa Ohkawa1, Tadahisa Naganawa1, Kouji Endou1, Senji Kato1, Shigeru Sone1, Atsushi Goto1 
29 Mar 1996
TL;DR: In this paper, a varying mechanism (VVT) for continuously varying the valve timing of an intake valve in a predetermined range is provided on a cam shaft in an engine, thus adjusting the amount of the internal EGR in combustion chambers.
Abstract: A varying mechanism (VVT) for continuously varying the valve timing of an intake valve in a predetermined range is provided on a cam shaft in an engine. By controlling the VVT, the valve overlap period of the intake valve and an exhaust valve is continuously varied in a predetermined range, thus adjusting the amount of the internal EGR in combustion chambers. When determining that the operational load of the engine is small and intermediate based on the value of a manifold pressure, an electronic control unit (ECU) computes a target value for advancing the valve timing with respect to the rotational phase of a crankshaft based on a throttle angle, an engine speed, etc. The ECU also computes a limit value to restrict the target value in accordance with the value of the manifold pressure. When the target value is smaller than the limit value, the ECU controls the VVT based on the target value. When the target value is greater than the limit value, the ECU replaces the limit value with target value and controls the VVT based on this target value.

162 citations

Journal ArticleDOI
TL;DR: In this paper, the results of first-principles calculations on the structural properties (lattice constants and internal parameters), dielectric properties (macroscopic, static, and Born effective charge tensors), and dynamical properties for the three polytypes of BN: the cubic zinc-blende structure, the wurtzite structure, and the hexagonal structure.
Abstract: We report the results of first-principles calculations on the structural properties (lattice constants and internal parameters), dielectric properties (macroscopic and static dielectric constants, and Born effective charge tensors), and dynamical properties $(\ensuremath{\Gamma}$-phonon frequencies) for the three polytypes of BN: the cubic zinc-blende structure $(c$-BN), the wurtzite structure $(w$-BN), and the hexagonal structure $(h$-BN). Our calculations were performed with the ultrasoft pseudopotential method and the linear response approach based on density-functional perturbation theory. By comparing the cohesive energies, we found that the c-BN structure is the most stable among the three polytypes at zero temperature. The computed equilibrium structural parameters, bulk moduli, and dielectric properties are in good agreement with the experimental data except for the lattice constant c of h-BN and the macroscopic dielectric constant along the c axis of h-BN. The $\ensuremath{\Gamma}$-phonon frequencies of c-BN and w-BN are close to each other. In order to distinguish c-BN and w-BN by Raman spectroscopy, it turns out that we should investigate the two Raman active ${E}_{2}$ modes that exist only in w-BN.

162 citations

Journal ArticleDOI
TL;DR: In this paper, a composite electrode composed entirely of solid-electrolyte-coated LiCoO 2 was fabricated for all-solid-state cells and their performance was investigated.

162 citations


Authors

Showing all 40045 results

NameH-indexPapersCitations
Derek R. Lovley16858295315
Edward H. Sargent14084480586
Shanhui Fan139129282487
Susumu Kitagawa12580969594
John B. Buse117521101807
Meilin Liu11782752603
Zhongfan Liu11574349364
Wolfram Burgard11172864856
Douglas R. MacFarlane11086454236
John J. Leonard10967646651
Ryoji Noyori10562747578
Stephen J. Pearton104191358669
Lajos Hanzo101204054380
Masashi Kawasaki9885647863
Andrzej Cichocki9795241471
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20231
202232
2021942
20201,846
20192,981
20182,541