A range of features and measures on Yeti to prevent and avoid accidents include:
ESP features a long list of electronic systems designed to stabilise the vehicle in critical handling situations, including ABS, EBD, EBC, ASR, EDL, HBA, DSR, ESBS (standard on all 4×4 models, optional on all other models).
Follows the golden rule of ‘see and be seen’. Yeti has an array of lights designed for safety; Bi-Xenon with corner lighting (standard on Elegance); third rear brake light; front fog lights; cornering fog lights (standard on Elegance); integrated indicators in door mirror housings, making it easier to see for other road users; and warning reflectors/lights on all doors when open.
Tyre pressure monitor
Will highlight any loss in pressure of the tyres to the driver. A decrease in pressure could radically change the car’s behaviour and drivability, potentially causing an accident.
Disc brakes on all four wheels
Ensures maximum braking power, providing the car with the greatest opportunity to stop safely in the event of an emergency.
Activation of warning lights during heavy braking
Lets the driver behind know of a possible hazard.
Speed dependent power steering
The variable-assist power steering provides the driver with a lighter steering feel when parking and driving at low speeds, whilst providing more feedback and resistance at higher speeds. This is critical for providing easy manoeuvrability and driving in a safe manner.
Increased visibility of surroundings
Yeti provides the driver with an increased view of the surrounding by using a raised seating position and large window areas. This increases the safety of the driver and occupants by providing a view, allowing the driver more time to avoid any potential obstructions, vehicles and pedestrians.
Yeti features a number of passive safety systems designed to lessen the risk of injury during an accident:
The use of high strength materials ensures high levels of chassis rigidity, particularly in the passenger compartment.
Progressive crumple zones
Front and rear crumple zones to ensure optimal crumpling to absorb as much energy as possible on impact.
Additional interior protection
Areas within the interior where there is a high probability of body contact during a crash, have been specifically designed with properties to provide maximum protection against injury (including dashboard, door panels and B-pillar).
Design of doors
The front doors have been designed with triple side stiffeners, and the rear doors with one stiffener. These increase rigidity and are capable of absorbing energy in the event of a side impact.
The two other rear seats are fitted with ISOFIX brackets, creating a fixed link to the car chassis-important for ensuring the seat is effectively secured in the event of a collision.
Yeti is fitted with six airbags as standard on base trim, with an additional driver’s knee airbag standard on S, SE and Elegance. Standard airbags on all models are driver and passenger side, and curtain airbags.
Yeti has a number of innovative features designed to make life safer, easier and more enjoyable for owners. These include systems and technologies premiered on the Superb – park assist and touch screen displays – along with new features developed specifically for Yeti.
Yeti’s impressive off-road ability is achieved through a mixture of incredible new technology such as the off-road button featuring hill hold control and the fourth-generation Haldex clutch.
Fourth generation Haldex clutch
On dry roads, 96% of the engine’s torque is delivered to the front wheels. However, if Yeti’s electronic control unit and its army of sensors detects a difference in speed between the front and rear axles, the Haldex clutch can divert up to 90% of the torque to the rear axle. Thanks to the fitment of a limited slip differential on the rear axle, drive is also distributed evenly from side to side, ensuring excellent grip and stability on all roads at all times.
The system relies on a network of sensors to deliver data to the central control unit. These devices constantly analyse information coming from the engine control unit (which contains data relating to revs and throttle pedal position), the ABS and ESP systems (which also capture information on wheel speed, brake light switch and acceleration forces), and also the steering wheel turning sensor.
Yeti’s four-wheel drive system works in conjunction with both the ABS and ESP systems to ensure that safety and stability is maintained at all times. When the ESP system is engaged, control of the Haldex clutch is taken over by ABS/ESP control unit. When the ABS system is called into action, the Haldex clutch is decoupled.
The four-wheel drive in Yeti is controlled through the fourth generation Haldex clutch. The clutch reponds immediately depending on the driving situation and traction of individual wheels.
- When pulling away and accelerating, drive is directed from the rear axle
- The highest torque is available during acceleration
- When braking, no transfer of torque to the rear axle is required
- Electronics disengage drive to the rear
- Driving on slippery surfaces such as wet gravel and snowy roads, torque to the rear axle is engaged as needed
- Instructions come from the ABS and ESP control unit recognising any wheel slippage
- When driving at higher speeds, power is directed through the front axle
- Electronics disengage drive to the rear
- During parking, only limited torque is transferred to the rear axle, as and when required
- During any ABS intervention the Haldex is completely disengaged
- When ESP intervenes the Haldex is controlled by signals from the ABS and ESP control unit
- If both front wheels slip on snow or ice, the Haldex clutch is activated and drive switches to the rear
- If one wheel slips, EDL intervenes
- Slipping wheel is braked
- Torque is routed to other front wheel and to the rear axle
Distribution of torque in various driving situations – synergy between the Haldex clutch and braking systems (ABS, ASR, EDL).