Title 13, California Code Regulations, Section 1968.2
Malfunction and Diagnostic System Requirements for 2004 and Subsequent Model-Year Passenger Cars, Light-Duty Trucks, and Medium-Duty Vehicles and Engines(OBD II). OAL-Approved Final Regulation Order for OBD II and Emission Warranty Regulations: approved on November 9, 2007.
« (11.1) Requirement | 目录 | (11.3) Monitoring Conditions »
(11.2) Malfunction Criteria:
(11.2.1)
For vehicles not included in the phase-in specified in section (e)(11.2.2):
- (A) The OBD II system shall detect a malfunction prior to any failure or deterioration of the individual components associated with the cold start emission reduction control strategy that would cause a vehicle’s emissions to exceed 1.5 times the applicable FTP standards. Manufacturers shall:
- (i) Establish the malfunction criteria based on data from one or more representative vehicle(s).
- (ii) Provide an engineering evaluation for establishing the malfunction criteria for the remainder of the manufacturer’s product line. The Executive Officer shall waive the evaluation requirement each year if, in the judgement of the Executive Officer, technological changes do not affect the previously determined malfunction criteria.
- (B) For components where no failure or deterioration of the component used for the cold start emission reduction strategy could result in a vehicle’s emissions exceeding 1.5 times the applicable standards, the individual component shall be monitored for proper functional response in accordance with the malfunction criteria in section (e)(15.2) while the control strategy is active.
(11.2.2)
For 25 percent of 2010, 50 percent of 2011, and 100 percent of 2012 and subsequent model year vehicles, the OBD II system shall, to the extent feasible, detect a malfunction if either of the following occurs:
- (A) Any single commanded element does not properly respond to the commanded action while the cold start strategy is active. For elements involving spark timing (e.g., retarded spark timing), the monitor may verify final commanded spark timing in lieu of verifying actual delivered spark timing. For purposes of this section, “properly respond” is defined as when the element responds:
- (i) by a robustly detectable amount; and
- (ii) in the direction of the desired command; and
- (iii) above and beyond what the element would achieve on start-up without the cold start strategy active (e.g., if the cold start strategy commands a higher idle engine speed, a fault must be detected if there is no detectable amount of engine speed increase above what the system would achieve without the cold start strategy active);
- (B) Any failure or deterioration of the cold start emission reduction control strategy that would cause a vehicle’s emissions to be equal to or above 1.5 times the applicable FTP standards. For this requirement, the OBD II system shall either monitor elements of the system as a whole (e.g., measuring air flow and modeling overall heat into the exhaust) or the individual elements (e.g., increased engine speed, commanded final spark timing) for failures that cause vehicle emissions to exceed 1.5 times the applicable FTP standards.
« (11.1) Requirement | 目录 | (11.3) Monitoring Conditions »
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