# US 8,788,131 B2 · Controller for taking measures against abnormal shift upon starting motor-driven vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,788,131 B2 - Document ID: US8788131B2 - Status: Granted - Kind: B2 - Application number: 13/697,479 - Filed: 2011-04-20 - Published: 2013-05-16 - Granted: 2014-07-22 - Earliest claimed: 2010-05-14 - Assignees: Nissan Motor Co., Ltd. - Applicants: Hisahiro Nabeshima; Hidemitsu Nakagawara - Inventors: Hisahiro Nabeshima; Hidemitsu Nakagawara - Web page: https://patentgrep.com/patent/US8788131B2 ## CPC - B60W 10/10: including control of change-speed gearings - B60L 3/08: Means for preventing excessive speed of the vehicle - B60L 15/2072: {for drive off} - B60W 10/08: including control of electric propulsion units, e.g. motors or generators - F16H 61/18: Preventing unintentional or unsafe shift {, e.g. preventing manual shift from highest gear to reverse gear} - F16H 61/22: Locking {of the control input devices} (constructional features of locking or disabling mechanisms F16H63/34) - B60L 2240/30: Parking brake position - B60L 2240/32: Driving direction - Y02T 10/64: Electric machine technologies in electromobility - Y02T 10/72: Electric energy management in electromobility - B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - F16H: GEARING - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract When a traveling drive system is activated at a time t2 in response to a turning of an ignition switch to an ON state at a time t1, a request of P/N inhibit (a park lock release inhibit) from an electrically operated motor controller vanishes. Therefore, originally, according to an execution of a park lock release, the vehicle is started in response to a holding of a D position of a shifter. However, in a case where a park lock release inhibit state occurs at a time immediately before time t2 and the shifter is at the D position at time t2, a present shift inhibit flag takes over the park lock inhibit state at the time immediately before t2 until a time t3 at which the shifter returns to a home (H) position so that the above-described start of the vehicle is prevented. ## Claims ### Claim 1 A control apparatus for taking measures against a shift abnormality upon activation for an electrically driven vehicle equipped with a battery that is electrically connectable to and chargeable via an external power supply, startable via motive power from an electrically operated motor, and configured to travel in a traveling mode corresponding to a signal from a momentary shifter when, with a traveling drive system of the electrically driven vehicle activated, the momentary shifter is operated from a reference position, the control apparatus comprising: a shift abnormality detecting device configured to detect whether the momentary shifter is kept at a position other than the reference position; and a traveling mode transfer inhibiting device configured to inhibit a transfer to the traveling mode corresponding to the position other than the reference position while the shift abnormality detecting device detects that the momentary shifter is kept at the position other than the reference position. ### Claim 2 (depends on 1) The control apparatus as claimed in claim 1, further comprising: an external power supply connection state detecting device configured to detect whether the electrically driven vehicle is electrically connected to the external power supply, wherein the traveling mode transfer inhibiting device is configured to inhibit the transfer to the traveling mode while the external power supply connection state detecting device detects that the electrically driven vehicle is electrically connected to the external power supply. ### Claim 3 (depends on 2) The control apparatus as claimed in claim 2, further comprising: a shift abnormality elimination detecting device configured to detect whether the momentary shifter returns from the position other than the reference position to the reference position, wherein the traveling mode transfer inhibiting device is configured to continue inhibition of the transfer to the traveling mode even after the shift abnormality elimination detecting device detects that the momentary shifter has returned to the reference position while the external power supply connection state detecting device detects that the electrically driven vehicle is electrically connected to the external power supply. ### Claim 4 (depends on 3) The control apparatus as claimed in claim 3, wherein the traveling mode transfer inhibiting device is configured to release the inhibition of the transfer to the traveling mode when the external power supply connection state detecting device detects that the electrically driven vehicle is not electrically connected to the external power supply and the shift abnormality elimination detecting device detects that the momentary shifter has returned to the reference position.