Frankfurt 2011: New Avensis safety — advanced driver assistance technologies

The new Avensis shares the world-class safety performance of the previous generation vehicle, which was awarded a maximum, 5-star rating in the 2009 Euro NCAP crash test programme.

Toyota is committed to providing the highest levels of active, passive and pedestrian impact safety standards, and took the lead in the development of several advanced new safety technologies such as pre-crash safety, lane departure warning and lane keeping assistance systems.

Advanced Pre-Crash Safety System

An Advanced Pre-Crash Safety (PCS) system is available as an option on Executive and Premium grade 2.2 litre D-4D 150 6-speed automatic transmission models. It employs a millimetre wave radar sensor to scan the road ahead, recognising potentially dangerous objects and assisting the driver in reducing the chances of a collision.

If there is a high possibility of a collision, PCS will alert the driver and, when he begins to brake, provide braking assistance to supplement his own braking effort, simultaneously activating the seatbelt pre-tensioners. If the driver does not brake and a collision is inevitable, the system will automatically apply the brakes to reduce impact speed.

Adaptive Cruise Control

Adaptive Cruise Control (ACC) works in tandem with the PCS system. It will automatically maintain a selected distance from the vehicle in front. Once the road ahead is clear, the Avensis automatically returns to its original cruising speed.

Lane Departure Warning and Lane Keeping Assist

Completing the advanced safety specification of the 2.2 litre D-4D 150 6-speed automatic transmission Executive and Premium grade model, PCS is further complimented by Lane Departure Warning (LDW) and Lane Keeping Assist (LKA) systems.

Using digital camera technology mounted behind the driver's rear view mirror, these systems can help to prevent unintended lane changes by first giving an audible and visual warning and then applying corrective steering torque to help the driver remain within a chosen lane.

Additional Active Safety Systems

All new Avensis versions are fitted, as standard, with an Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Brake Assist (BA), Traction Control (TRC) and Vehicle Stability Control (VSC+).

EBD works with ABS to ensure that the most effective brake force is applied to each wheel, according to road conditions. By preventing the wheels from locking, EBD helps to maintain sure-footed stability during cornering and braking.

BA identifies the need for, and applies, additional braking force if the driver fails to apply sufficient force during emergency braking, or releases brake pressure too soon.

TRC monitors and controls the amount of power that is applied to the road through the car's wheels. If the system detects that one or more wheels is about to lose traction it instantly determines the best way to restore traction to that wheel, either by decreasing the power being sent to the wheel that is about to spin or, in more extreme cases, momentarily braking the wheel until it regains traction.

VSC+ is designed to prevent loss of car control when entering a corner too fast or in slippery conditions which might lead to a skid. Via sensors monitoring car body rotation, wheel speed and brake pressure, the system assesses vehicle stability and the proximity of either an understeer or oversteer slide.

The system restores stability by automatically adjusting engine output and applying smoothly modulated braking to the appropriate wheel individually, and by providing assist torque through the Electric Power Steering (EPS) to help the driver make the correct inputs to restore vehicle stability.

Adaptive Front Lighting

New Avensis model equipped with High Intensity Discharge (HID) headlamps are fitted with an Adaptive Front Lighting System (AFS). Calculating where the vehicle will be in three seconds time according to steering operation and vehicle speed, the system swivels the low beam projector headlamps in response to steering input, helping to illuminate a bend as the driver steers into it.

AFS is also equipped with a dynamic levelling function, which automatically maintains a constant beam height. The combination of these two functions achieves optimum light distribution in all driving conditions.