Patent ID: 11938814
Assignee: MAZDA MOTOR CORPORATION
Field: Transport (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 2:
3. A driving assistance device comprising:
a manually operable accelerator operation unit and a steering wheel provided in front of a driver seat in a vehicle cabin of a vehicle,
wherein the accelerator operation unit is operable in a state where the steering wheel is gripped,
wherein an operation reaction force of the accelerator operation unit exhibits an inflection point at which the operation reaction force increases in response to an increase in an operation amount of the accelerator operation unit,
wherein, at the inflection point of the operation reaction force, a target acceleration of the vehicle requested by an accelerator operation is set to approximately zero,
wherein the accelerator operation unit comprises a first operation reaction force generation unit which generates a first operation reaction force in a region where the operation amount is smaller than an operation amount at the inflection point of the operation reaction force, and the accelerator operation unit comprises a second operation reaction force generation unit which generates a second operation reaction force in a region where the operation amount is larger than the operation amount at the inflection point of the operation reaction force, and
wherein the accelerator operation unit is provided in an arc shape along an inner periphery side of the steering wheel, at least four support portions which are capable of a slide operation with respect to the steering wheel are arranged in left-right symmetry, and at least one support portion among the at least four support portions is configured to serve as the second operation reaction force generation unit.