Mining vehicle
First Claim
1. A mining vehicle comprising:
- a distance detector configured to detect a distance between the vehicle traveling on a transport road of a mining site and an object in front of the vehicle on the transport road and further detect a relative speed of the vehicle to the object;
a minimum roadside distance determining unit configured to store a minimum roadside distance calculated from a shape of the transport road;
a state quantity sensor configured to detect a state quantity of the vehicle;
a traveling status calculator configured to calculate traveling status of the vehicle and a turning radius of the vehicle on a basis of the vehicle'"'"'s state quantity detected by the state quantity sensor;
a roadside distance calculator configured to calculate, on a basis of the calculated turning radius, a roadside distance between the vehicle and a roadside of the transport road;
a roadside distance selector configured to select and output the minimum roadside distance on a basis of the calculated traveling status of the vehicle if the vehicle is in a rectilinearly traveling state and configured to select and output the roadside distance calculated with the roadside distance calculator on a basis of the calculated traveling status of the vehicle if the vehicle is in a turning state;
a detected distance limiter configured to disable a signal representing the distance, detected with the distance detector, between the vehicle and the object in front of the vehicle and the relative speed if the distance between the vehicle and the object is larger than a distance represented by a signal selected and output from the roadside distance selector, and configured to output a signal representing the distance, detected with the distance detector, between the vehicle and the object in front of the vehicle and the relative speed if the distance between the vehicle and the object is smaller than a distance represented by a signal selected and output from the roadside distance selector; and
a vehicle speed controller configured to control the speed of the vehicle on a basis of signal output from the detected distance limiter.
1 Assignment
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Accused Products
Abstract
A mining vehicle is provided, which is capable of appropriately recognizing a condition of a traveling road in front of the vehicle, preventing an obstacle on a roadside from being erroneously detected by a distance detector, and controlling the speed of the vehicle in a stable manner even when the vehicle is approaching a curved portion of the road from a linear portion of the road.
The mining vehicle that travels on a transport road of a mining site includes: a minimum roadside distance determining unit; a traveling status calculator configured to calculate traveling status of the vehicle and a turning radius of the vehicle; a roadside distance calculator configured to calculate a roadside distance between the vehicle and a roadside of the transport road; a roadside distance selector configured to select and output a minimum roadside distance if the vehicle is in a rectilinearly traveling state and select and output the roadside distance calculated with the roadside distance calculator if the vehicle is in a turning state; a detected distance limiter configured to disable a signal representing the distance, detected with the distance detector, between the vehicle and the object and the relative speed if the distance between the vehicle and the object is larger than a distance represented by a signal selected and output from the roadside distance selector; and a vehicle speed controller configured to control the speed of the vehicle on the basis of a signal output from the detected distance limiter.
43 Citations
6 Claims
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1. A mining vehicle comprising:
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a distance detector configured to detect a distance between the vehicle traveling on a transport road of a mining site and an object in front of the vehicle on the transport road and further detect a relative speed of the vehicle to the object; a minimum roadside distance determining unit configured to store a minimum roadside distance calculated from a shape of the transport road; a state quantity sensor configured to detect a state quantity of the vehicle; a traveling status calculator configured to calculate traveling status of the vehicle and a turning radius of the vehicle on a basis of the vehicle'"'"'s state quantity detected by the state quantity sensor; a roadside distance calculator configured to calculate, on a basis of the calculated turning radius, a roadside distance between the vehicle and a roadside of the transport road; a roadside distance selector configured to select and output the minimum roadside distance on a basis of the calculated traveling status of the vehicle if the vehicle is in a rectilinearly traveling state and configured to select and output the roadside distance calculated with the roadside distance calculator on a basis of the calculated traveling status of the vehicle if the vehicle is in a turning state; a detected distance limiter configured to disable a signal representing the distance, detected with the distance detector, between the vehicle and the object in front of the vehicle and the relative speed if the distance between the vehicle and the object is larger than a distance represented by a signal selected and output from the roadside distance selector, and configured to output a signal representing the distance, detected with the distance detector, between the vehicle and the object in front of the vehicle and the relative speed if the distance between the vehicle and the object is smaller than a distance represented by a signal selected and output from the roadside distance selector; and a vehicle speed controller configured to control the speed of the vehicle on a basis of signal output from the detected distance limiter. - View Dependent Claims (4)
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2. A mining vehicle comprising:
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a distance detector configured to detect a distance between the vehicle traveling on a transport road of a mining site and an object in front of the vehicle on the transport road and further detect a relative speed of the vehicle to the object; a minimum roadside distance determining unit configured to store a minimum roadside distance calculated from a shape of the transport road; a state quantity sensor configured to detect a state quantity of the vehicle;
a traveling status calculator configured to calculate traveling status of the vehicle and a turning radius of the vehicle on a basis of the vehicle'"'"'s state quantity detected by the state quantity sensor;a roadside distance calculator configured to calculate, on a basis of the calculated turning radius, a roadside distance between the vehicle and a roadside of the transport road; a roadside distance selector configured to select and output the minimum roadside distance on a basis of the calculated traveling status of the vehicle if the vehicle is in a rectilinearly traveling state and configured to select and output the roadside distance calculated with the roadside distance calculator on a basis of the calculated traveling status of the vehicle if the vehicle is in a turning state; an object status determining unit configured to determine whether or not the object in front of the vehicle is a stationary object on a basis of the relative speed, detected by the distance detector, of the vehicle to the object in front of the vehicle and a vehicle'"'"'s speed detected with the state quantity sensor; a detected distance limiter configured to disable, on a basis of a result of determination made by the object status determining unit and the traveling status of the vehicle, a signal having a distance between the vehicle and the object larger than a distance represented by a signal selected and output from the roadside distance selector, the signal representing the distance, detected with the distance detector, between the vehicle and the object in front of the vehicle and the relative speed, and configured to output, on a basis of a result of determination made by the object status determining unit and the traveling status of the vehicle, a signal having a distance between the vehicle and the object smaller than a distance represented by a signal selected and output from the roadside distance selector, the signal representing the distance, detected with the distance detector, between the vehicle and the object in front of the vehicle and the relative speed; and a vehicle speed controller configured to control the speed of the vehicle on a basis of signal output from the detected distance limiter. - View Dependent Claims (3, 5, 6)
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Specification