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Speed wobble (also known as shimmy, tank-slapper, [1] or death wobble) is a rapid side-to-side shaking of a vehicle's wheel(s) that occurs at high speeds and can lead to loss of control. It presents as a quick (4–10 Hz) oscillation of primarily the steerable wheel(s), and is caused by a combination of factors, including initial disturbances ...
Front-facing cameras detect speed limit signs and compare them against map data to display those limits on the dashboard center display even if no signs are detected. [78] 2018 [79] Obstacle Aware Acceleration Reduces acceleration when an obstacle is detected in the path of travel while driving at low speeds. 2019 [80] Blind spot monitoring
The first major cause of unintended acceleration was found in March 2007, when an engineering analysis showed that unsecured all-weather mats had led to pedal entrapment and drivers accelerating up to 90 mph (140 km/h) with decreased braking power.
Motion sensors monitoring the vehicle's interior are installed in some higher end models. The simplest aftermarket alarms are one-piece units with a siren and control module. The most common type of sensor is a shock sensor and two wires (12-volt constant power and ground) which are connected to the car's battery.
A bad crank position sensor can worsen the way the engine idles, or the acceleration behaviour. If the engine is revved up with a bad or faulty sensor, it may cause misfiring, motor vibration or backfires. Acceleration might be hesitant, and abnormal shaking during engine idle might occur. In the worst case, the car may not start.
A typical ETC system consists of three major components: (i) an accelerator pedal module (ideally with two or more independent sensors), (ii) a throttle valve that can be opened and closed by an electric motor (sometimes referred to as an electric or electronic throttle body (ETB)), and (iii) a powertrain or engine control module (PCM or ECM). [4]
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In February 2010, National Public Radio obtained the full NHTSA database of 15,000 unintended acceleration complaints over the past decade, and determined that among all manufacturers, Volkswagen had the highest rate of unintended acceleration complaints in 2009 and 2008 (11.5 and 21.6 per 100,000 vehicles respectively), while Suzuki had the ...