VEHICLE CONTROL SYSTEM
First Claim
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1. A vehicle control system comprising:
- an information obtaining means for obtaining road information around a vehicle; and
an automatic vehicle traveling means for operating a power generating means mounted in the vehicle based on the road information in order to bring the vehicle from vehicle stopping condition to vehicle traveling condition, when a demand for changing the vehicle condition from the stopping condition to the traveling condition is generated.
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Abstract
When a vehicle is started on an uphill road, slip may easily occur between vehicle wheels and a sloping road surface. When vehicle condition is changed from its stopping condition to its traveling condition on the uphill road, vehicle acceleration is controlled in a feed-back operation in such a manner that a target acceleration is made smaller as road gradient becomes larger or coefficient of friction becomes smaller.
44 Citations
19 Claims
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1. A vehicle control system comprising:
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an information obtaining means for obtaining road information around a vehicle; and an automatic vehicle traveling means for operating a power generating means mounted in the vehicle based on the road information in order to bring the vehicle from vehicle stopping condition to vehicle traveling condition, when a demand for changing the vehicle condition from the stopping condition to the traveling condition is generated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A vehicle control system comprising:
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an electronic control unit for receiving various vehicle information relating to a road condition and a vehicle traveling condition, the vehicle information including at least a road gradient and a vehicle speed, wherein the electronic control unit has a vehicle start control portion, which calculates a target vehicle acceleration based on the vehicle information including the road gradient, when the vehicle is to be started on an uphill road, wherein the electronic control unit calculates, based on the target acceleration, a required engine torque, a required gear ratio and a required brake pressure, so that an engine is operated to generate the required engine torque, a transmission apparatus is operated with the required gear ratio, and hydraulic brake pressure is controlled at the required brake pressure, in order that vehicle acceleration is controlled at the target acceleration during an operation for changing a vehicle condition from a vehicle stopping condition to a vehicle traveling condition, and wherein the target acceleration is limited to such a value, within which slip may not occur between vehicle wheels and a road surface. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification