Acceleration/deceleration control apparatus

Patent metadata

Field	Value
Publication number	US-2018186352-A1
Application number	US-201615740259-A
Country	US
Kind code	A1
Filing date	Jun 8, 2016
Priority date	Jun 30, 2015
Publication date	Jul 5, 2018
Grant date	—

Abstract

An acceleration/deceleration control apparatus includes a mode switching portion configured to switch a normal mode of performing acceleration control in response to an operation on an accelerator pedal and also performing deceleration control in response to an operation on a brake pedal, and a one-pedal mode of performing both the acceleration control and the deceleration control in response to the operation on the accelerator pedal according to a switching operation performed by a driver. Where a mode is switched from the normal mode to the one-pedal mode, one-pedal instruction switching portion ( 35 B) of the acceleration/deceleration control apparatus outputs such one-pedal acceleration/deceleration instruction value A(Xa) that a result of adding a non-one-pedal acceleration instruction value B 1 (Xb) for the one-pedal mode and a one-pedal acceleration instruction value Ab(Xa) for the one-pedal mode after the mode is switched matches non-one-pedal deceleration instruction value Bn(xb) for the normal mode before the mode is switched.

First claim

1 . An acceleration/deceleration control apparatus for a vehicle system, the control apparatus comprising
a normal mode of performing acceleration control in response to an operation on an accelerator pedal and performing deceleration control in response to an operation on a brake pedal, a one-pedal mode of performing both the acceleration control and the deceleration control in response to an operation on any one of the accelerator pedal and the brake pedal and performing only any one of the acceleration control and the deceleration control in response to an operation on the other of pedals, and a mode switching unit configured to switch the one-pedal mode and the normal mode according to a switching operation per forced by an occupant, wherein the acceleration/deceleration control apparatus, switches a characteristic of a non-one-pedal acceleration instruction value or a non-one-pedal deceleration instruction value calculated according to an amount of the operation on the other of pedals during the one-pedal mode according to the mode switching using the mode switching unit, wherein the acceleration/deceleration control apparatus is configured to set a result of adding the non-one-pedal acceleration instruction value or the non-one-pedal deceleration instruction value to a one-pedal acceleration/deceleration instruction value calculated according to the operation on the one of pedals for performing tooth the acceleration control and the deceleration control as a target acceleration/deceleration instruction of a vehicle in the one-pedal mode, and wherein, in a case where the mode is switched with use of the mode switching unit while the other of pedals is being operated daring the one-pedal mode, the acceleration/deceleration control apparatus switches an instruction value characteristic of the other of pedals that is being operated after maintaining an acceleration or a deceleration before this mode switching.

2 . The acceleration/deceleration control apparatus according to claim 1 , wherein the acceleration/deceleration control apparatus maintains the acceleration or the deceleration by outputting such a one-pedal acceleration/deceleration instruction value that the result of adding the non-one-pedal acceleration instruction value or the non-one-pedal deceleration instruction value and the one-pedal acceleration/deceleration instruction value for the one-pedal mode, for the one-pedal mode after the mode is switched matches the non-one-pedal acceleration instruction value or deceleration instruction value for the normal mode before the mode is switched.

3 . The acceleration/deceleration control apparatus according to claim 1 , wherein the acceleration/deceleration control apparatus maintains the acceleration or the deceleration by outputting such a non-one-pedal acceleration instruction value or non-one-pedal deceleration instruction value that the result of adding the non-one-pedal acceleration instruction value or the non-one-pedal deceleration instruction value and the one-pedal acceleration/deceleration instruction value for the one-pedal mode, for the one-pedal mode after the mode is switched matches the non-one-pedal acceleration instruction value or deceleration instruction value for the normal mode before the mode is switched.

4 . The acceleration/deceleration control apparatus according to claim 1 , wherein the acceleration/deceleration control apparatus maintains the acceleration or the deceleration by continuously performing control based on the non-one-pedal acceleration instruction value or deceleration instruction value for the normal mode before the mode is switched until the result of adding the non-one-pedal acceleration instruction value or the non-one-pedal deceleration instruction value and the one-pedal acceleration/deceleration instruction value for the one-pedal mode, for the one-pedal mode after the mode is switched matches the non-one-pedal acceleration instruction value or deceleration instruction value for the normal mode before the mode is switched.

5 . The acceleration/deceleration control apparatus according to claim 1 , wherein the acceleration/deceleration control apparatus maintains the acceleration or the deceleration by performing control while adding a difference between a result of adding the non-one-pedal acceleration instruction value or deceleration instruction value and the one-pedal acceleration/deceleration instruction value for the one-pedal mode for the one-pedal mode before the mode is switched, and the non-one-pedal acceleration instruction value or deceleration instruction value for the normal mode after the mode is switched, to the non-one-pedal acceleration instruction value or deceleration instruction value tor the normal mode after the mode is switched.

Assignees

• Hitachi Automotive Systems Ltd

Inventors

• Goto Daisuke

Classifications

• B60W2720/106

  Longitudinal acceleration · CPC title

• B60W2540/12

  Brake pedal position · CPC title

• B60W50/0098

  Details of control systems ensuring comfort, safety or stability not otherwise provided for · CPC title

• B60W2540/10

  Accelerator pedal position · CPC title

• B60W50/082

  Selecting or switching between different modes of propelling · CPC title