Vehicle Dynamics Integrated Management (VDIM) is an integrated vehicle handling and software control system developed by

Toyota is a Japanese multinational automotive manufacturer headquartered in Toyota City, Aichi, Japan. It was founded by Kiichiro Toyoda and incorporated on . Toyota is one of the largest automobile manufacturers in the world, producing about 10 ...

. It involves an omnibus computer linkage of

traction control A traction control system (TCS), also known as ASR (from german: Antriebsschlupfregelung, lit=drive slippage regulation), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicle ...

, electronic stability control, electronic steering, and other systems, with the intent of improving responsiveness to driver input, performance, and overall safety. The system was first introduced in the

Japanese domestic market Japanese domestic market (JDM) refers to Japan's home market for vehicles and vehicle parts. There is a common misconception that any Japanese branded car is JDM; however, this is not true. Only a vehicle made in Japan specifically to be sold i ...

in July 2004, when Toyota debuted VDIM on the

Toyota Crown Majesta The is a full-size luxury sedan from Toyota. It is an upmarket variant of the Crown and serves as Toyota's flagship model in various countries. The Crown Majesta appeared after the international introduction of the Celsior/Lexus LS in late ...

. This was followed by the VDIM's export debut on the third generation

Lexus GS The is an executive car sold by Lexus, the premium division of Toyota. The same car had been launched in 1991 as the Toyota Aristo in Japan. For non-Japanese markets, it was released as the Lexus GS in February 1993. It continued using the Toyo ...

, which was launched in 2005. VDIM integrates the company's Electronically Controlled Brake (ECB),

Anti-Lock Brake An anti-lock braking system (ABS) is a safety anti-skid braking system used on aircraft and on land vehicles, such as cars, motorcycles, trucks, and buses. ABS operates by preventing the wheels from locking up during braking, thereby maintai ...

s (ABS), Electronic Brakeforce Distribution (EBD),

Traction Control A traction control system (TCS), also known as ASR (from german: Antriebsschlupfregelung, lit=drive slippage regulation), is typically (but not necessarily) a secondary function of the electronic stability control (ESC) on production motor vehicle ...

(TRC) and

Vehicle Stability Control Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology that improves a vehicle's stability by detecting and reducing loss of traction ( skiddi ...

(VSC) active safety systems with the

Adaptive Variable Suspension TEMS (Toyota Electronic Modulated Suspension) is a shock absorber that is electronically controlled ( Continuous Damping Control) based on multiple factors, and was built and exclusively used by Toyota for selected products during the 1980s and 19 ...

(AVS), Electric Power Steering (EPS) and

Variable Gear Ratio Steering A power steering is a mechanical device equipped on a motor vehicle that helps drivers steer the vehicle by reducing steering effort needed to turn the steering wheel, making it easier for the vehicle to turn or maneuver at lower speeds. Hydrauli ...

(VGRS) systems which previously worked independently using proprietary software. This way all the systems function together rather than the ECU prioritizing which is the most important. VDIM was initially designed for

rear-wheel drive Rear-wheel drive (RWD) is a form of engine and transmission layout used in motor vehicles, in which the engine drives the rear wheels only. Until the late 20th century, rear-wheel drive was the most common configuration for cars. Most rear-wheel ...

cars. VDIM's capabilities expand upon Toyota's stand-alone Vehicle Stability Control (VSC) system which was introduced in 1995; VSC remains the baseline electronic stability control system used by the company. VSC by definition does not intervene until ''after'' a skid is detected, while VDIM takes measures to ''prevent'' skids, slides, or wheel spins rather than just take action after tire slippage has occurred. This is done by constantly making corrections in a subtle manner that are transparent to the driver. In further contrast with VSC, VDIM can also calibrate driver steering input according to vehicle speed, with active steering and throttle adjustments to improve ride quality and directional control during performance driving, such as in slalom courses.Autobytel Avoiding Accidents - VDIM
/ref> With the EPS system VDIM instantly varies the amount of power steering assist depending on driving conditions. In vehicles equipped with

(VGRS), VDIM also manages steering gear ratios to help the driver maintain control. Initially, the system was only offered on vehicles equipped with Electronically Controlled Brake (ECB), but this is no longer required.

Applications

Lexus IS The is a compact executive car sold by Lexus, a luxury division of Toyota since 1999. The IS was originally sold under the nameplate in Japan from 1998 (the word ''Altezza'' is Italian for 'height' or 'highness'). The IS was introduced as an e ...

: IS 350 (2005), IS 250 (2008), IS F (2007; with an additional "sport" setting) *

: GS 430 (2005), GS 350 (2006), GS 450h (2006), GS 460 (2007) * Lexus LS: LS 460 (2006), LS 600h (2007), LS 500, LS 500h (2018) *

Lexus RX The is a luxury crossover SUV sold since 1998 by Lexus, a luxury division of Toyota. Originally released in its home market of Japan in late 1997 as the Toyota Harrier, export sales began in March 1998 as the Lexus RX. Considered as the first ...

: RX 400h (2005), RX 350 (2009), RX 450h (2009) * Nexus NX: NX 300h (2014 on) *

Toyota Camry Hybrid The Toyota Camry (XV50) is a mid-size car produced by Toyota from August 2011 to March 2019. Replacing the XV40 series, the XV50 represents the seventh generation of the Toyota Camry in all markets outside Japan, which follows a different gener ...

(2006) *

(2004) *

Toyota Highlander Hybrid The Toyota Highlander, also known as the , is a mid-size crossover SUV with three-row seating produced by Toyota since 2000. Announced in April 2000 at the New York International Auto Show and arriving in late 2000 in Japan and January 2001 in ...

(2005) *

Toyota Sienna The Toyota Sienna is a minivan manufactured and marketed by Toyota primarily for the North American and select East Asian markets. It is named for the Italian city of Siena, in the region of Tuscany. It replaced the first generation Previa van ...

(2011) * Toyota Landcruiser 300 Series (2021)

Similar systems

* Cadillac

Integrated Chassis Control System Electronic stability control (ESC), also referred to as electronic stability program (ESP) or dynamic stability control (DSC), is a computerized technology that improves a car handling, vehicle's stability by detecting and reducing loss of Tract ...

(ICCS)

References

{{Lexus cars Toyota Lexus Vehicle safety technologies ja:VDIM