DRIVE SUPPORT DEVICE

• Main Author: TAKAGI YUKA
• Format: Patent
• Language: English; Japanese
• Published: 29.08.2019
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; COMBUSTION ENGINES; CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; CONTROLLING COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

To provide a drive support device which can accurately detect and prevent an accelerator erroneous operation which is liable to occur when retreating a vehicle while operating a brake or releasing the operation even if a prescribed time has elapsed from a shift position changeover time point.SOLUTION: When an index value which changes according to an accelerator operation amount (AP) being an operation amount of an accelerator operator by a driver satisfies an index value condition within a period in which a shift position is a reverse position (R) for retreating a vehicle, a drive support ECU determines that an accelerator erroneous operation is performed when there is established an accelerator erroneous operation condition which is established when a time from a brake-off time point (t3) at which the brake operator is not operated up to a time point (t4) at which the index value does not satisfy the index value condition is not longer than a prescribed threshold time (T2th). In this case, the drive support ECU sets a drive force generated by a drive unit according to the accelerator operation amount small compared with the case that the accelerator erroneous operation condition is not established.SELECTED DRAWING: Figure 2 【課題】ブレーキ操作を行ったり解除したりしながら車両を後退させている際に発生し易いアクセル誤操作をシフト位置切替時点から所定時間が経過した後であっても精度良く検出し防止することが可能な運転支援装置を提供する。【解決手段】運転支援ＥＣＵは、シフトポジションが車両を後退させるためのリバースポジション（Ｒ）である期間において、運転者によるアクセル操作子の操作量であるアクセル操作量（ＡＰ）に応じて変化する指標値が指標値条件を満たした場合、ブレーキ操作子が操作されていないブレーキオフ時点（ｔ３）から指標値が指標値条件を満たした時点（ｔ４）までの時間が所定の閾値時間（Ｔ２ｔｈ）以下であるときに成立するアクセル誤操作条件が成立したとき、アクセル誤操作が行われていると判定する。この場合、運転支援ＥＣＵは、アクセル誤操作条件が成立しないときに比べ、アクセル操作量に応じて駆動装置が発生する駆動力を小さくする。【選択図】図２