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Which additional capability does electric assistance enable?

  • A.A reduction in the number of turns from lock to lock, which makes the steering more responsive during manoeuvres
  • B.Automated steering interventions such as lane keeping
  • C.A greater maximum steering lock, which is achieved by allowing the motor to drive the rack beyond its normal travel
  • D.Higher pressure

Answer: B

Because the motor can apply torque independently of the driver, the system can nudge the vehicle back into lane, park it or correct a crosswind. Hydraulic systems cannot do so. It is the enabling technology for most driver assistance functions. The shared behaviour explains why these belong together and the differences explain why both exist. A symptom that appears under one condition and not another is what narrows the diagnosis quickly. Most errors here come from carrying a result across from a neighbouring case where it does not hold.

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