About 12 results
https://drivepatents.com/patents/1393016 · 26 Nov 2025
A system (300) for detecting hydrogen leaks within a vehicle (10) includes a vehicle component (206, 206A, 206B, 218, 220, 204) in which hydrogen is stored or through which hydrogen flows positioned within a compartment (280, 282, 284, 286, 290) of the veh...
https://drivepatents.com/patents/1070419 · 1 Feb 2006
The device has a pollution sensor (7) for detecting the presence of pollutants in air and connected to a control module (5) for closing a group of opening frames of a motor vehicle when a level of detected pollutants exceeds a predetermined threshold. The ...
https://drivepatents.com/patents/1084613 · 25 Aug 2004
An improved HVAC control method immediately closes an air inlet valve (44) to provide full cabin air recirculation when an outside air quality sensor (92) detects polluted air, and thereafter progressively re-opens the air inlet valve (44) at a determined ...
https://drivepatents.com/patents/1088864 · 17 Mar 2004
The present invention provides a gas detection apparatus (10), which uses a gas sensor element (11) whose sensor resistance (Rs) changes in accordance with the concentration of an oxidative gas, obtains a sensor output value (S(n)) corresponding to the sen...
https://drivepatents.com/patents/1092432 · 22 Oct 2003
The purpose of this industrial patent - by Francesco Erba - Via Cardinale Lualdi, 6 - 00165 ROME - ITALY - is to avoid that polluting agents, such as toxic powders and gas, may enter the driver's cabin of motor vehicles and damage their users/passengers. G...
https://drivepatents.com/patents/1094211 · 6 Aug 2003
An air-quality conditioning device is proposed, which can be singly used or used in combination with a small air conditioner. In an enclosed space, concentration of carbon dioxide is detected by a carbon dioxide concentration detecting module (10) of the d...
https://drivepatents.com/patents/1098657 · 29 Jan 2003
The vehicle comprises a measuring probe arrangement (1) for acquiring the gas composition of air for the engine and/or air conditioning/ventilating unit fed to the arrangement. Preferred Features: The measuring probe arrangement has a sensor unit (2, 3) fo...
https://drivepatents.com/patents/1099797 · 11 Dec 2002
The method involves using auxiliary parameters to indirectly determine and evaluate the air parameters and the circulation component is set depending on the evaluation results. A first auxiliary component is a defined, especially maximum permissible, limit...
https://drivepatents.com/patents/1100536 · 13 Nov 2002
The switching device has the interrogation sensitivity of the switching device dependent on the output signals of the harmful substance sensor. These signals are dependent on the number of passengers, the internal temperature and/or humidity, and/or the ve...
https://drivepatents.com/patents/1102191 · 28 Aug 2002
The circuit has a stage for signal evaluation (12) using at least one criterion that outputs a switching signal with a first state corresponding to high air quality and a second corresponding to low quality. An integrator (27) increases a characteristic va...