Mostrando postagens com marcador Lexus. Mostrar todas as postagens
Mostrando postagens com marcador Lexus. Mostrar todas as postagens

Bugatti Veyron vs. Lamborghini Aventador vs. Lexus LFA vs. McLaren MP4-12C


Lexus Variable Gear Ratio Steering

REDUCTION MECHANISM This key part of the VGRS system allows the input and output shafts to turn at differing speeds, thereby varying the steering ratio (from 12.0:1 to 10.3:1 in the GS). It consists of four parts: the stator gear, the driven gear, the wave generator, and the flexible gear. I. STATOR GEAR A fixed steel ring with 102 internal gear teeth, attached to the VGRS housing. 2. DRIVEN GEAR A steel ring with 100 internal gear teeth, attached to the output shaft. 3. WAVE GENERATOR An oval-shaped brass cam driven by the electric motor. Internal ball bearings push against and distort theylexible gear during rotation. 4. FUSIBLE GEAR A metal ring with 100 external teeth, the flexible gear is partially meshed with both the stator gear and the driven gear. Their differing number of teeth yields the steering-ratio change when an integrated motor spins the wave generator. This, in turn, rotates the driven gear and the output shaft through the flexible gear. When the motor spins In the opposite direction of the steering input, the rotation of the output shaft is greater than the rotation from the wheel, yielding a quicker steering ratio. To slow the ratio, the motor spins in the same direction as the input from the wheel. INPUT SHAFT is attached to the steering wheel. LOCK MECHANISM In the event of a system malfunction, this component locks the Input shaft to the output shaft. STATOR COIL PERMANENT MAGNET MOTOR SHAFT MOTOR To work, lips needs an auxiliary source of torque, which comes from a small permanent-magnet electric motor. It gets its marching orders from the steering-control computer, which analyzes speed and steering angle. OUTPUT SHAFT conveys adjusted steering commands to,the pinion gear.
Mudar o raio de giro do volante de um carro dinamicamente tem muitas vantagens. Um volante que tem uma angulação curta (poucas voltas de trava a trava) dá maior poder de controle do veículo ao motorista. Já se a angulação é maior (mais voltas de trava a trava) favorece a estabilidade do carro em altas velocidades.

O sistema computadorizado da Lexus usa uma espécie de "caixa de câmbio" embutida na coluna de direção. O Variable Gear Ratio Steering (VGRS) usa um "gerador de ondas" e uma engrenagem flexível. A empresa diz que seu sistema é mais preciso que o de outras montadoras, como BMW e Audi. O VGRS é utilizado nos Lexus LS, LX e GS F Sport.

2012 North American International Auto Show Highlights


Acura NSX Concept








BMW 3 Series




Cadillac ATS






Dodge Dart






Ford Fusion






Ford Mondeo




Hyundai Genesis Coupé






Hyundai Veloster Turbo






Lexus LF-LC Concept






Mercedes-Benz SL550






Porsche 911 Carrera Cabriolet






Subaru BRZ and Scion FR-S


Ferrari 599 GTO vs. Lexus LFA in the Scottish Highlands


The history of Lexus LFA


Chris Harris drives Lexus LFA Nürburgring Edition around Nürburgring Nordschleife


Lexus LFA Nürburgring Edition review by autocar.co.uk


Lexus LFA vs. Ferrari 599 GTO: launch control and top speed runs


Lexus LFA Nürburgring Edition - Nürburgring Nordschleife - Onboard - 7:14.64


Lexus LFA achieves a 7minute 14.64 seconds lap time on the Nürburgring Nordschleife

* Lexus LFA Nürburgring package achieves a class leading Nürburgring Nordschleife lap time of 7:14.64, driven by LFA race and test driver Akira Iida.

* 50 from a total LFA production run of 500 will feature the track-focused Nürburgring package

* The LFA Nürburgring package features enhanced aerodynamic performance, tuned suspension and a maximum power of 420 kW/571 DIN hp

On August 31st 2011, Lexus undertook a performance check with the Lexus LFA Nürburgring Package, a two-seater supercar, at the Nürburgring (Rhineland-Pfalz, Germany).

Scheduled for production in 2012, the LFA Nürburgring Package has been optimized to deliver higher performance on the track, with a number of modifications made to the standard LFA. The LFA Nürburgring package is included in the limited 500 production run of the LFA.

The Nürburgring package includes a carbon fibre reinforced plastic (CFRP) front spoiler and fixed rear wing to enhance aerodynamic performance. The LFA Nürburgring Package also comes with track tuned suspension and custom wheels to improve maneuverability and stability. Compared to the standard LFA's output of 412 kW (560 PS), the output of the LFA Nürburgring package has been raised to 420 kW (571 PS).

On the Nürburgring Nordschliefe (North Loop), where the LFA was extensively developed, professional race driver and LFA test driver, Akira Iida recorded a lap time of just 7:14.64. The tires used during the performance evaluation were Bridgestone Potenza RE070 tires which are the standard road legal specification for this LFA.

Mr. Dr. Schmidt , the COO of the Nürburgring Automotive GmbH stated ‘‘For us, it is always very special when a car is developed to meet the needs of the Nürburgring-Nordschleife.

It shows us that the Nordschleife still is of particular importance for the automotive industry and that it still radiates a tremendous fascination. Lexus met the challenge Nordschleife by developing the Lexus LFA Nürburgring package.

The lap time driven demonstrates impressively that Lexus have done an excellent job in matching the challenges of the track with the needs of an exclusive sports car.

This is an outstanding result for Lexus and a reassurance of the excellent work done. We are very delighted by this."

Haruhiko Tanahashi, LFA Chief Engineer stated "Since 2004 in the spring and summer of every year we have conducted development tests for the LFA at Nürburgring Nordschleife. The LFA Nürburgring package is the compilation of our extensive testing programme and we have appreciated the opportunities to utilise the Nürburgring Nordschleife to strengthen and develop the LFA into the vehicle it is today. The development team's obsession, Iida-san's concentration and good course conditions all led to achieving this record".

Commenting on the result Iida-san said "We are delighted with this achievement. Our ongoing development of the LFA and our recent outings at the Nürburgring 24h race have enabled us to continued to tune the vehicle. The result with the LFA Nürburgring package shows the cars ultimate performance and agility. This is a first activity of its type for Lexus and the constant effort of the team has brought this fantastic result".

The Lexus LFA supercar was first shown at the 41st Tokyo motorshow. The development took place over a period of ten years and was an indispensable step for Lexus, and its future models. The first model of the new generation Lexus, the new GS shows the new direction for the brand in terms of bold, dynamic styling, precise handling and innovative technology. The full hybrid GS 450h will be shown for the first time at Frankfurt motorshow on the 13th September.

2012 Lexus LFA


Lexus LFA - Laguna Seca Raceway - Onboard


Lexus LF-A - Nürburgring Nordschleife - Onboard - Veranstaltergemeinschaft Langstreckenpokal Nürburgring


Lexus LFA vs. Nissan GT-R vs. Chevrolet Corvette ZR1 vs. Porsche 911 GT2 RS vs. Ferrari F430 GT3


Em uma corrida parecida com esta, a revista japonesa Best Motoring tenta descobrir, no Fuji Speedway, qual carro é o melhor, em uma corrida de três voltas.

2012 Lexus LFA Road Trip


Lexus LFA review


Como funciona o Lexus LFA


Caso um dia você se tornar abastado o suficiente para adquirir um supercarro, veja o que você recebe quando compra um Lexus LFA. Paul Williamsen, diretor da Lexus, ensina, em DVD enviado para o cliente, os controles, características e diferenciais do Lexus LFA.

Tiff Needell drives Lexus LFA


2011 Lexus IS (Music Track)




2011 Ferrari 599 HGTE vs. 2012 Lexus LFA


Lexus LFA review by Auto Express