Engine brake control system for vehicle
US6161641A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1997 |
| Grant date | Dec 19, 2000 |
| Priority date | — |
| Expiry date | Jul 8, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60W2710/105
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control system for controlling engine braking effect of a vehicle includes a sensor section, an actuator section and a controller section at least. The sensor section includes sensors, such as longitudinal and lateral acceleration sensors or wheel speed sensors, for determining a vehicle operating variable indicative of slipperiness of a road surface. The actuator section varies a manipulated variable, such as a throttle opening degree, an air fuel ratio or a gear ratio, of an engine and transmission system to control the engine braking torque in response to a control signal. The controller section decreases the engine braking torque by varying the manipulated variable as the road surface becomes more slippery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.