| 摘要 |
<p>The invention relates to a device for activation of an emergency brake function (8; 8') within a vehicle (1) in dependence of whether a regular brake function, comprising a first brake circuit and a second brake circuit, is out of order. The invention is characterised by comprising a first sensor (20; 20') for detecting whether the pressure (p1) in the first brake circuit falls below a first limit value (P1G?), a second sensor (21; 21') for detecting whether the pressure (p2) in the second brake circuit falls below a second limit value (p¿2G), and means (16; 24, 25, 26) for activation of said emergency brake function if the pressure (P¿1?) in the first brake circuit falls below the first limit value (p1G) at the same time as the pressure (P2) in the second brake circuit falls below the second limit value (P2G). The invention also relates to a method for such activation of an emergency brake function. Through the invention, a secure activation of an emergency brake function is allowed, and a reduced risk of this emergency brake function being activated unnecessarily, i.e. when it is not needed.</p> |
